Guest btate Posted August 6, 2013 Share Posted August 6, 2013 Just gathering opinions and thoughts. I want to use P235/75 R15. If I use this size I guess I will have to run a LITTLE UNDER INFLATED. To keep the center from over wearing. I most likely will only do about 3000 miles a year , if that much. Any opinions???? Link to comment Share on other sites More sharing options...
Bhigdog Posted August 6, 2013 Share Posted August 6, 2013 (edited) Yeah, put on the car what was designed to be put on the car and you won't be posting later about how your car won't steer correctly, or something is rubbing, or your hub caps are falling off, or your king pins are worn out, or your tires are wearing, or your steering wheel sounds funny, etc etc etc etc...................Bob Edited August 6, 2013 by Bhigdog (see edit history) Link to comment Share on other sites More sharing options...
60FlatTop Posted August 7, 2013 Share Posted August 7, 2013 (edited) Wasn't there a movie where Jimmy Stewart went back in time as a Firestone engineer and changed one little thing about tire design? Then when he returned to his own time all the cars wouldn't steer correctly, stuff rubbed, hub caps fell off, king pins wore out, and all kinds of stuff sounded funny. I think in the end the back bumper fell off.A set of 7.60 X 15's will do the job nicely and last about 10 years per set.BerniePsst. An under-inflated radial might pull off that narrow bead at an inopportune time. Edited August 7, 2013 by 60FlatTop (see edit history) Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted August 7, 2013 Share Posted August 7, 2013 Geeezzze! bbate, those are the size I am running on my 1950. Over 6000 miles so far NO PROBLEMS. MANY '55s were running radials when they were still daily driven old cars. I run 30# in mine. Ben Link to comment Share on other sites More sharing options...
Guest btate Posted August 7, 2013 Share Posted August 7, 2013 Manual reads the car requires 760 x 15. Are tires still made with such numbers? All I have seen are numbers and letters such as P225/75r 15r etc. So what would a 760 x 15 convert to in nomenclature that I am familiar with. Link to comment Share on other sites More sharing options...
NTX5467 Posted August 7, 2013 Share Posted August 7, 2013 IF you might find some radials whose design is "narrow-treaded" there should be no significant issues with a P235/75R-15 tire on a 5.5" wide rim. KEY thing is that you're measuring the rim width BETWEEN the flanges and NOT including the flanges in your width measurement! The Cooper TrendsetterSE radial was one such narrow-treaded radial in ALL of its 15" sizes.Unlike a bias-ply type of tire architecture, a radial's more flexible sidewalls can better compensate for a narrower rim width and still not have issues of "center tread wear" to the same magnitude as the bias-ply tires did. I believe the "tolerance" of tread width and rim width is 1 inch, plus or minus, for rim width compared to tread width?I concur that 30psi (cold) would be about right.Enjoy!NTX5467 Link to comment Share on other sites More sharing options...
NTX5467 Posted August 7, 2013 Share Posted August 7, 2013 Manual reads the car requires 760 x 15. Are tires still made with such numbers? All I have seen are numbers and letters such as P225/75r 15r etc. So what would a 760 x 15 convert to in nomenclature that I am familiar with.The KEY issue in size conversion is "revs/mile" of the tire, which means the outer "rolling" diameter of the tire. Plus load carrying capacity at 32psi (if you might factor-down t)he capacity for the newer P-metric tires from their stated 35psi max rating). From the middle 1950s, newer tires of the 1960s became wider for the same outer diameter. By the time we got to about 1966, the prior 7.60x15 could have become a 8.45x15 size, which would equate to about 215/75x15 (as a pure metric equivalent). THEN, by observation, when the current P-metric sizing came about in the earlier 1980s (as a part of the higher inflation pressures for better fuel economy "things"), a prior 215/75x15 size became a P225/75R-15 size. Such a P225/75R-15 size is between the "H" and "J"78-15 sizes (by sidewall width), where the later P235/75R-15 would equate to the prior L78-15 size.Seems like the '50s 15" tire sizes were . . . 6.70x15, 7.10x15, 7.60x15, and 8.20x15? Later to evolve into . . . 9.15x15, 8.85x15, 8.45x15, 8.15x15, and 7.75x15 (in somewhat reverse order) with intermediate stops at L78x15, J78x15, H78x15, G78x15, and F78x15 (in descending order; radial tires added an "R" after the main letter). For a short time, there were some L84x15 tires used on Chrysler Station Wagons in the earlier 1970s, but nowhere else I'm aware of, usually made by Goodyear.(Wondering . . . might somebody get some replica '50s Buick center sections and put them inside of a later model 15x6 or 15x6.5" wheel rim? Same attachments for hub caps and such, but with more modern construction suitable for radials and such? Or possibly some high-strength aluminum as Chrysler used for 15x6 wheels in the 1979-1981 time frame?)Perhaps I've just "stirred the mud" a little with this information, rather than thinning it out?Enjoy!NTX5467 Link to comment Share on other sites More sharing options...
buick man Posted August 7, 2013 Share Posted August 7, 2013 If I remember correctly, 1957 was the year GM came out with the safety rim. It had a lip on it the other previous year rims did not have. When you look at the profile sectional of the rim you can see this lip as it help to keep the tire on the rim in case of blow outs. With that said, this may or may not influence your modern upgrade tire aspirations as quoted and may be a safety issue as well as a fit issue if you are planning on putting these metric sized tires on your older non safety rim/lip rims. Link to comment Share on other sites More sharing options...
60FlatTop Posted August 7, 2013 Share Posted August 7, 2013 Here are two of the 8.20 x 15 Firestones I put on my "60 in 2011. They are Cokers and I bought them from Summit Racing to save about $160 on the set. You can still get them.Bernie Link to comment Share on other sites More sharing options...
Guest btate Posted August 7, 2013 Share Posted August 7, 2013 Seems the tires have been changing through the years. I still don't know what size tire I need. Link to comment Share on other sites More sharing options...
old-tank Posted August 7, 2013 Share Posted August 7, 2013 Geeezzze! bbate, those are the size I am running on my 1950. Over 6000 miles so far NO PROBLEMS. MANY '55s were running radials when they were still daily driven old cars. I run 30# in mine. BenThere you go... actual evidence that they will work (not theory )!! Link to comment Share on other sites More sharing options...
Eric W Posted August 7, 2013 Share Posted August 7, 2013 (edited) I'll check exactly what's on my '55, but I think they are 235/75 R 15's. Not on stock rims, though - something wider maybe 7". My car is lowered (too much), and they don't rub anywhere. If you're set on running the 5.5" rims, I might consider 215's so they don't look too "pinched in". Tires squeezed onto too-narrow rims just look bad, in my opinion, regardless of any functional advantages/disadvantages. Thing to check - since 7.60x15 is the stock size, compare the revolutions/mile (effectively a representation of the diameter) so that the revs/mile is about the same from 7.60x15 to whatever tire you choose. A good tire shop can bring up this info for you and get the revs/mile within a couple percent. Revs/mile varies between different tires of the same nominal size, so you need the exact info that a tire shop will have. A good tire shop should also be able to provide an opinion as to what width looks good / fits well on the rims you have.I consider revs/mile to be important for 2 things (and there's a 3rd which probably doesn't matter a whole lot). 1. The diameter will be correct in terms of fitting in the wheel well. Unless you don't really care that there's either too much empty wheel well showing, or the wheel wells look over-stuffed with tire. 2. Maintains gear ratio - unless you're trying to "adjust" gear ratio somewhat by going with a smaller/larger tire. Smaller might slightly help acceleration, larger might reduce highway/cruising rpm, with a penalty on acceleration. 3. Maintains speedometer/odometer accuracy - or inaccuracy as the case may be. Item 3 is 100% irrelevant to my car, as the speedometer doesn't work, and I've calibrated the tach to MPH via a GPS. Edited August 7, 2013 by Eric W added photo (see edit history) Link to comment Share on other sites More sharing options...
buick5563 Posted August 7, 2013 Share Posted August 7, 2013 Here are two of the 8.20 x 15 Firestones I put on my "60 in 2011. They are Cokers and I bought them from Summit Racing to save about $160 on the set.[ATTACH=CONFIG]207395[/ATTACH] You can still get them.BernieYou can get them through Coker or many other companies (Summit, etc) All of these places have conversion tables to calculate what you had originally to modern sized radials.FWIW, an 8.20 WILL rub (and look massive) on a 55 Special. Link to comment Share on other sites More sharing options...
Guest btate Posted August 8, 2013 Share Posted August 8, 2013 Thanks, there a lot of valuable information here. Thanks Link to comment Share on other sites More sharing options...
bhambulldog Posted August 8, 2013 Share Posted August 8, 2013 http://www.tirerack.com/tires/tiretech/45_conversionchart.html[TABLE=width: 760]<tbody>[TR=bgcolor: #666666][TD=class: whitetext, align: center]1949to1964[/TD][TD=class: whitetext, align: center]1965to1970[/TD][TD=class: whitetext, align: center]1970 to 1980[/TD][TD=class: whitetext, align: center]1960 - On[/TD][TD=class: whitetext, colspan: 5, align: center]1980 - On[/TD][/TR][TR][TD=colspan: 2, align: center]NUMERIC[/TD][TD=align: center]ALPHA NUMERIC*[/TD][TD=align: center]EURO-METRIC[/TD][TD=align: center]P-METRIC[/TD][TD=colspan: 4, align: center]EURO-METRIC or P-METRIC[/TD][/TR][TR][TD=colspan: 2, align: center]"90-" to "80"-series[/TD][TD=align: center]78- to 50-series[/TD][TD=align: center]"82"-series[/TD][TD=align: center]80-, 75-series[/TD][TD=align: center]70-series[/TD][TD=align: center]65-series[/TD][TD=align: center]60-series[/TD][TD=align: center]50-series[/TD][/TR][TR][TD=class: bottomline3px, align: center]5.20-10[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center]145R10[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center]165/70R10[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]5.20-12[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]145R12[/TD][TD=align: center]P145/80R12[/TD][TD=align: center]165/70R12[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=class: bottomline3px, align: center]5.60-12[/TD][TD=class: bottomline3px, align: center]6.00-12[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center]155R12[/TD][TD=class: bottomline3px, align: center]P155/80R12[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]165/65R13[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]145R13[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]155R13[/TD][TD=align: center]P155/80R13[/TD][TD=align: center]175/70R13[/TD][TD=align: center][/TD][TD=align: center]195/60R13[/TD][TD=align: center]215/50R13[/TD][/TR][TR][TD=align: center]5.60-13[/TD][TD=align: center]6.00-13[/TD][TD=align: center]A[/TD][TD=align: center]165R13[/TD][TD=align: center]P165/80R13[/TD][TD=align: center]185/70R13[/TD][TD=align: center][/TD][TD=align: center]205/60R13[/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center]6.50-13[/TD][TD=align: center]B[/TD][TD=align: center]175R13[/TD][TD=align: center]P175/80R13[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]C[/TD][TD=align: center][/TD][TD=align: center]P185/80R13[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center]7.00-13[/TD][TD=align: center]D[/TD][TD=align: center]185R13[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center]195R13[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]5.60-14[/TD][TD=align: center]6.00-14[/TD][TD=align: center][/TD][TD=align: center]145R14[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]175/65R14[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]6.00-14[/TD][TD=align: center]6.45-14[/TD][TD=align: center][/TD][TD=align: center]155R14[/TD][TD=align: center][/TD][TD=align: center]175/70R14[/TD][TD=align: center]185/65R14[/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]B[/TD][TD=align: center]165R14[/TD][TD=align: center]P175/75R14[/TD][TD=align: center]185/70R14[/TD][TD=align: center]195/65R14[/TD][TD=align: center]205/60R14[/TD][TD=align: center][/TD][/TR][TR][TD=align: center]6.50-14[/TD][TD=align: center]6.95-14[/TD][TD=align: center]C[/TD][TD=align: center]175R14[/TD][TD=align: center]P185/75R14[/TD][TD=align: center]195/70R14[/TD][TD=align: center][/TD][TD=align: center]215/60R14[/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]D[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]7.00-14[/TD][TD=align: center]7.35-14[/TD][TD=align: center]E[/TD][TD=align: center]185R14[/TD][TD=align: center]P195/75R14[/TD][TD=align: center]205/70R14[/TD][TD=align: center][/TD][TD=align: center]225/60R14[/TD][TD=align: center]245/50R14[/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]7.50-14[/TD][TD=align: center]7.75-14[/TD][TD=align: center]F[/TD][TD=align: center]195R14[/TD][TD=align: center]P205/75R14[/TD][TD=align: center]215/70R14[/TD][TD=align: center][/TD][TD=align: center]235/60R14[/TD][TD=align: center][/TD][/TR][TR][TD=align: center]8.00-14[/TD][TD=align: center]8.25-14[/TD][TD=align: center]G[/TD][TD=align: center]205R14[/TD][TD=align: center]P215/75R14[/TD][TD=align: center]225/70R14[/TD][TD=align: center][/TD][TD=align: center]245/60R14[/TD][TD=align: center]265/50R14[/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]8.50-14[/TD][TD=align: center]8.55-14[/TD][TD=align: center]H[/TD][TD=align: center]215R14[/TD][TD=align: center]P225/75R14[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]9.00-14[/TD][TD=align: center][/TD][TD=align: center]J[/TD][TD=align: center]225R14[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=class: bottomline3px, align: center]9.50-14[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center]L[/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][TD=class: bottomline3px, align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center]5.60-15[/TD][TD=align: center]A[/TD][TD=align: center]155R15[/TD][TD=align: center]P155/80R15[/TD][TD=align: center][/TD][TD=align: center]185/65R15[/TD][TD=align: center]195/60R15[/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]6.00-15[/TD][TD=align: center][/TD][TD=align: center]B[/TD][TD=align: center]165R15[/TD][TD=align: center]P165/80R15[/TD][TD=align: center]185/70R15[/TD][TD=align: center]195/65R15[/TD][TD=align: center]205/60R15[/TD][TD=align: center]225/50R15[/TD][/TR][TR][TD=align: center]6.50-15[/TD][TD=align: center]6.85-15[/TD][TD=align: center]C[/TD][TD=align: center]175R15[/TD][TD=align: center][/TD][TD=align: center]195/70R15[/TD][TD=align: center]205/65R15[/TD][TD=align: center]215/60R15[/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]D[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center]7.35-15[/TD][TD=align: center]E[/TD][TD=align: center]185R15[/TD][TD=align: center]P195/75R15[/TD][TD=align: center]205/70R15[/TD][TD=align: center]215/65R15[/TD][TD=align: center]225/60R15[/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]6.70-15[/TD][TD=align: center]7.75-15[/TD][TD=align: center]F[/TD][TD=align: center]195R15[/TD][TD=align: center]P205/75R15[/TD][TD=align: center]215/70R15[/TD][TD=align: center][/TD][TD=align: center]235/60R15[/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center]8.15-15[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]7.10-15[/TD][TD=align: center][/TD][TD=align: center]G[/TD][TD=align: center]205R15[/TD][TD=align: center]P215/75R15[/TD][TD=align: center]225/70R15[/TD][TD=align: center]235/65R15[/TD][TD=align: center]245/60R15[/TD][TD=align: center]265/50R15[/TD][/TR][TR][TD=align: center][/TD][TD=align: center]8.25-15[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center]8.45-15[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]7.60-15[/TD][TD=align: center][/TD][TD=align: center]H[/TD][TD=align: center]215R15[/TD][TD=align: center]P225/75R15[/TD][TD=align: center]235/70R15[/TD][TD=align: center][/TD][TD=align: center]255/60R15[/TD][TD=align: center]275/50R15[/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center]8.55-15[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center]8.00-15[/TD][TD=align: center]8.85-15[/TD][TD=align: center]J[/TD][TD=align: center]225R15[/TD][TD=align: center]P225/75R15[/TD][TD=align: center]235/70R15[/TD][TD=align: center][/TD][TD=align: center]265/60R15[/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center]8.20-15[/TD][TD=align: center]9.00-15[/TD][TD=align: center]K[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR][TD=align: center][/TD][TD=align: center]9.15-15[/TD][TD=align: center]L[/TD][TD=align: center]235R15[/TD][TD=align: center]P235/75R15[/TD][TD=align: center]255/70R15[/TD][TD=align: center][/TD][TD=align: center]275/60R15[/TD][TD=align: center]295/50R15[/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center]N[/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR][TR=bgcolor: #cccccc][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][TD=align: center][/TD][/TR]</tbody>[/TABLE]* When replacing Alpha Numeric tires with Euro-metric or P-metric tires, look for the Euro-metric or P-metric size listed in the equivalent aspect ratio. For example, when replacing a FR78-14, you would look up the appropriate 75-series size, the 205/75R14. If replacing a FR70-14, you would look up the appropriate 70-series size, the 215/70R14. If replacing a FR60-14, you would look up the appropriate 60-series size, the 235/60R14.Listing in chart does not imply complete interchangeability.When changing tire sizes, dimensional clearances must be checked. Link to comment Share on other sites More sharing options...
Marty Roth Posted August 10, 2013 Share Posted August 10, 2013 When looking at the charts for interchangeability, be careful....The interchange is general in nature,and is geared more toward weight carrying capacity,than toward revs per mile.The radial specified as comparable in the chart will frequently be a lower profile, and will be lesser in circumference. This will make your speedometer and odometer show somewhat higher than actual. I have P235/75R-15 radials on my 1954 Cadillac (8.20-15 was original).When my speedo shows 75, and a 1958 VW with its original 32bhp zooms by, I know we are incorrect. In that case, I use my GPS to determine the speedo error, and get the device which goes between the tranny case and the speedo cable to correct the error. Link to comment Share on other sites More sharing options...
Eric W Posted August 10, 2013 Share Posted August 10, 2013 The tires in the photo I posted above are 235/70 R15's. The tire shop I worked with has done quite a few sets of tires for me, and bringing in the '55 got the manager's attention. He has some older cars & took the time to figure out what would give a very close diameter / revs/mile to the original tires. I'm not saying anyone else's info is right or wrong, just this is working for me & my car. Link to comment Share on other sites More sharing options...
bhambulldog Posted August 10, 2013 Share Posted August 10, 2013 I have speedometer error. But, the odometer is dead accurate by the mile posts and the GPS. Speedometer error can be caused by wrong tire size.But, a speedometer can also be wrong with correct tires and gears. When the resistance is not correct on the speedometer head. Link to comment Share on other sites More sharing options...
MCHinson Posted August 10, 2013 Share Posted August 10, 2013 btate,I am a bit confused with you having such a difficult time locating tires for your antique car. Your profile indicates that you are located in Chattanooga TN. One of the largest suppliers for antique car tires in the world is located in your home town. If I were you, I would simply stop by Coker Tires at 1317 Chestnut Street, Chattanooga TN. You can get expert advice from Coker and get your tires without having to pay any shipping charges like most of us do. Link to comment Share on other sites More sharing options...
Bhigdog Posted August 10, 2013 Share Posted August 10, 2013 Way too easy and hassle free. Be out of character ........................................Bob Link to comment Share on other sites More sharing options...
Guest btate Posted August 10, 2013 Share Posted August 10, 2013 My last set of wheels and tires came from Coker Tires. It just I was tying to purchase the quietest running tire possible. I could not find where their tires are rated. I will run by there next week since I need to buy a couple other items from them and check them out, but I don't think there's a rating on them for ride comfort , ride noise etc. I hope I am wrong Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted August 10, 2013 Share Posted August 10, 2013 Way too easy and hassle free. Be out of character ........................................Bob Agreed! Link to comment Share on other sites More sharing options...
60FlatTop Posted August 11, 2013 Share Posted August 11, 2013 (edited) Way too easy and hassle free. Be out of character ........................................BobI agree. And it is the general entertainment value of the forum in general.Thursday or Friday I had just read through forum entries. I went out to the garage, stepped on the gas pedal and the '60 Buick started instantly on a cold engine and idled smooth. I backed out of the garage with no shudders or lurching, turned around with no rubbing or short turn radius, put the car in Drive and smoothly drove onto my street. There is a fairly new traffic circle at the intersection of the state road. I zipped around smiling and thought "What were they writing about Dynaflows on the forum?", pushed the pedal and zipped off the Main Street exit, went to Tractor Supply, had coffee at the diner where the car started fine hot, and rolled smoothly home.Yesterday I took my wife over to Holley in the Chevy for lunch with the same relative ease.I'm fussing with the injectors on the convertible today so I'll probably run up to the other end of town with the '64 Riviera and get some fresh pintle caps at Advance Auto.They are all stock. It is a lot easier without the improvements.Bernie Edited August 11, 2013 by 60FlatTop (see edit history) Link to comment Share on other sites More sharing options...
Guest btate Posted August 16, 2013 Share Posted August 16, 2013 Been sorta under the weather but I believe I will live. When I purchased the car i gave the old tires to a friend, so I called him and the size was 235/75r 15. The tires looked good on the car and drove well, so I will use the new tires I already have. Thanks for all the help Link to comment Share on other sites More sharing options...
MrEarl Posted August 16, 2013 Share Posted August 16, 2013 Been sorta under the weather but I believe I will live. When I purchased the car i gave the old tires to a friend, so I called him and the size was 235/75r 15. The tires looked good on the car and drove well, so I will use the new tires I already have. Thanks for all the helpSorry to hear you have been under the weather but glad you will survive. I may be wrong but didn't you swap your original rims out for some aftermarkets. Are you sure they are only 5.5". Link to comment Share on other sites More sharing options...
Guest btate Posted August 16, 2013 Share Posted August 16, 2013 Mr. Earl, I never got rid of them, thank goodness. It is the wheels that was on the car when I bought it. Wheels were painted same color as car. I am almost sure the wheels are original. The spare is same color and same size. I am sending back the aftermarket wheels due to not able to get them balanced. Link to comment Share on other sites More sharing options...
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