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J78x15 Tires NOW AVAILABLE!!


Guest 70 Electra

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Guest 70 Electra

Just wanted to let everyone know that the project I've been involved in has come to fruition---the J78x15 tire is going to be reproduced!!<P>COKER Tire company is already advertising their "new" BF Goodrich J78x15 (ref. April 2001 Hemmings Motor News, page 2894). The tires will be available "during the second quarter of 2001".<P>Coker will be making these authentic bias-belted tires in both the DUAL STRIPE sidewall that is correct for 1970 & 1971, as well as the 7/8" white stripe that was used after 1971.<P>The DUAL STRIPE availability is significant, because, to date, NO ONE has made a repro tire with this sidewall. (The so-called "dual" stripe on the 900x15 Cadillac repro tires is a wide/narrow combo, not twin thin stripes like a 70 Buick.)<P>This is also the ONLY reproduction of the J78 size tire by anyone. This size was OE on Electra, Olds 98, Chrysler New Yorker and Town&Country, and several full size Plymouth/Dodge wagons. It was also optional on Wildcat, Centurion, LeSabre, and most full size Pontiacs of the era.<P>If you are even REMOTELY interested in these tires, I encourage you to call Coker to inquire about them. I tried hard to convince them that there was a market for them and now it's up to hobbyists/collectors like you and me to show that we are interested.<P>------------------<BR>Greg Cockerill<BR>BCA #36864<BR>1970 Electra convertible

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Guest 70 Electra

Centurion,<BR>Thanks for the kind words. The nice folks at Coker informed me that the "engineering samples" of the new repro J78 are expected in a few weeks, and if all goes well, production should start by the end of the month. That means we can get a set in time for the Buick Nationals!!<P><P>------------------<BR>Greg Cockerill<BR>BCA #36864<BR>1970 Electra convertible

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Greg, Your efforts are to be commended on this. I am sure that you as well as many others are awaiting a finished product. I will definately be on the phone with and inquiry. I again offer my thanks to you for your time energy and devotion not only to Buick but the old car hobby in general.

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"Beauty" Greg! By "belted" does that mean that they are like the new steel belted radial tires with wide whitewalls for the 1950s cars, or are they the dual-ply that they had back then?<P>I'm very interested. Thanks for the leg-work on this!<P>Mark<P>------------------<BR>

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I just answered my own question. Coker Tire stated today, that the J78x15 will be "bias-ply" meaning, not steel-belted; and that they may or may not use the dual white wall on it. Hopefully they will, and that info hasn't bled down to then sales department yet.<P><BR><P>------------------<BR>

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Guest 70 Electra

The ad in the current Hemmings lists a 7/8" whitewall and a "dual stripe" as being the choices. I actually supplied Coker with patterns made off an original J78 dual stripe, so the darn thing should look 100% correct, if they don't screw it up! <P>As I understand it, the same basic tire mold is used (determines sidewall and tread design), and something like a tool insert is used to allow molding the different whitewall widths. This is why almost every tire they sell comes in a couple of different stripe widths.<P>From the beginning, I've been trying to understand how they proposed to do the "construction" of the repro J78 tire: bias ply, or bias-belted. I spoke directly to Corky Coker (Pres.) and he assured me the construction would be BELTED, just like the original---not bias ply. <P>It sounded like there wasn't really a choice---they are using ORIGINAL BFGoodrich molds that they'd located and I think this dicates the construction would HAVE to be "belted" like the original tires.<P>Those of you that are old enough to remember, will recall that the belted tire revolution was a big thing at the time (1968-70). Most of the auto makers said that they "retuned" their suspensions to take advantage of the new tire construction, but exactly what they did I don't know!<P>Glad to see that others are interested in this tire, too!!<P>------------------<BR>Greg Cockerill<BR>BCA #36864<BR>1970 Electra convertible

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