Guest Posted May 25, 2002 Share Posted May 25, 2002 hello everyone,<P>i own a 1970 olds 98 2-door and was looking for front brake rotors, but... I CAN'T FIND THEM ANYWEAR!.. and i thought i'd be in and out the door with these things. all of the local parts stores are saying they don't show a '70 98 as having disk brakes. well, mine does.<P>i suppose the previous owner could have converted them from drums, but they look stock to me. i just can't tell, but i'd think disks would have to be stock to stop this MONSTER. if anyone owns a '70 98, could you please take a minute to look and see what type of brakes it has up front? anyone else who knows, i'd really appreciate it. also, if anyone knows where i can buy 98 rotors, please let me know (they are 12" dia and 30+mm thick).<P>it's may already, and my RED ROCKET is still in the hanger. thanks for any info. Link to comment Share on other sites More sharing options...
66400 Posted May 25, 2002 Share Posted May 25, 2002 '68-'68'-69-'70 full size Oldsmobiles were available with disc brakes as an option. I think if you check with a true auto parts source such as NAPA you'll find replacment rotors. Henry Link to comment Share on other sites More sharing options...
Guest Posted May 25, 2002 Share Posted May 25, 2002 thanks henry,<P>at least now i know what i'm looking for. unfortunately, NAPA doesn't have them. they didn't show a listing in their books for '70 98 rotors. only '71s and on. 2 days ago, i picked up a pair of '71 rotors thinking they would fit... today i took them back.<P>thanks again for your help. i'm sure i'll find these things, it's just a matter of time. Link to comment Share on other sites More sharing options...
rocketraider Posted May 25, 2002 Share Posted May 25, 2002 Olds book shows p/n 399458 fits 69-70 all disc brake except F85 and Toronado, which translates to it fits 88-98 either side. I was thinking front power discs were standard on the B,C & E cars 1970? Link to comment Share on other sites More sharing options...
Guest Posted May 25, 2002 Share Posted May 25, 2002 thanks a lot,<P>that part number should be helpful, and what you say makes sense. the NAPA guy pulled a '70 f85 rotor, but it was 11" diam (too small). ok, now we're headed in the right direction.<P>i gotta say this is a terrific site. i posted my topic 2 hrs ago and i'm already getting useful info. amazing! this place is more helpful than all the parts stores in columbus, oh combined.<P>thanks again... Link to comment Share on other sites More sharing options...
palbuick Posted May 25, 2002 Share Posted May 25, 2002 If you can do some checking on part munbers I have a new set of front rotors for a 70 Buick, fits all series B-C-E, Lesabre, Wildcat Electra amd Riviera, These are NEW, and fit the 70 only. I will get the part number and post it later today, Aftermarket Wagner or some other brand. I know on the Buicks the disc brakes were an option and rare, up to 1970.<BR>Jim Schilf / palbuick@aol.com Link to comment Share on other sites More sharing options...
66400 Posted May 26, 2002 Share Posted May 26, 2002 I checked a Hollander interchange manual and it list the full size '69-'70 Oldsmobile 88 98 rotor as being exclusive.<P>Buick is not the same.<P>It also list a drum brake for '70 full size Oldsmobile so it seems that the disc were an option.<P>For'71 rotors were shared with all full size GM cars and 1/2 trucks. Link to comment Share on other sites More sharing options...
rocketraider Posted May 26, 2002 Share Posted May 26, 2002 Henry, wasn't this about the time Buick came out with their Accu-Drive front suspension geometry? Could that be the difference in the Olds and Buick rotors? Sure thought they'd have been the same. Link to comment Share on other sites More sharing options...
66400 Posted May 26, 2002 Share Posted May 26, 2002 Here's more Hollander info Rocketraider<BR> Seems like during the development of disc brakes '67-'70 all the fullsize GM lines used their own designs.<P>'67-'70 Cadillac/Buick/Oldsmobile/Pontiac and Chevrolet fullsize cars all have different rotors, nothing interchanges between the divisions.<P>During this era full size parts like all the upper and lower control arms and spindles were dedicated for each division only. <P> With the total redesign of the '71 full size cars all GM except Cadillac would share front end assemblies of spindles, control arms and brake systems.<BR>Henry. Link to comment Share on other sites More sharing options...
Guest Posted May 26, 2002 Share Posted May 26, 2002 thanks guys.<P>all of this info is very helpful. i've found a few leads online, and think I may have located the rotors. won't know for sure until after the holiday weekend. thanks again. all of this knowlage is proving valuable and very interesting. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now