They must be within factory specs (1.25" to 1.22") original design (4 piston, fix calipers). Need 2 of them. Know this is looking for a needle in a hay stake, but thought I would try.

 

You can now get Chinesium rotors from Kanter for this application. That's preferrable to having rotors that are excessively worn.

https://www.kanter.com/productdetail...Router=Catalog

Of course, you can always go with a Scarebird conversion too.

https://scarebird.com/

 

Appreciate the Kanter link. Will try them today. I have scare bird as a back up, but would like to keep the car as original as possible.

 

I'm nervous about the Scarebird kit for many reasons. First, the rotors used on that kit are only 11" diameter and 1.21" max thickness. The OEM rotors are 12" diameter and 1.25" max thickness.




Second, that kit is designed for the drum brake spindles. I assume a spacer of some sort is needed for the disc brake spindles that the OP has.

Third, there's this from the Scarebird website:
Fourth, I don't understand this statement:

Quote:

This setup eliminates the stock ball bearings with safer, less expensive tapered roller bearings yet still preserves the stock 5 on 5 inch bolt pattern.

 

Thank you, Joe. I have asked around and you may know...is the spindle on the 1968 Cadillac with disc brakes the same as on the Oldsmobile? And if not, if I find Cadillac spindles, would they fit in the Olds control arms? I assume question 1 is no, and question 2 may be yes/maybe. I know finding the Caddie spindles is going to be tough, but finding Oldsmobile rotors is even tougher. FRUSTRATING!!!

 

Forgot to say that the reason I asked about the Cadillac specs/parts is that they are readily available and should work with my existing wheels.

 

The Caddy front suspension is completely different from that on the Olds. The lower ball joint is the same, but the upper is different. The spindles look very different and the steering arms are different. I doubt this is an easy swap.

A more feasible approach is to modify a newer rotor to fit. I was about to go down this path until I stumbled across an NOS pair of rotors for my car. Rotors for a first gen Cadillac CTS with base suspension and brakes are VERY close dimensionally. CENTRIC 12162069, RAYBESTOS 580120, and BENDIX PRT5449 {#18060682} are all available from RockAuto. You'll need to have the center bore machined to fit the pilot on your hub and you'll need to have the lug holes redrilled for a 5 x 5" bolt pattern. My local automotive machine shop said this was no big deal for them.

 

Thanks for the info on the Caddie...it is what it is. I am still running down a few more rabbit holes, but may need to give this a try. If I go this route, I will let you know if it works. I am in WV, so the car has to be inspected, even with antique plates. Have to see how they react to the modified rotor.

John

 

I don't know about the quality of your safety inspections, but here in Northern VA, I doubt any inspection station could tell the difference between original replacement and modified rotors.

 

I bet the only thing they would check is the condition of the rotor and the pads. They probably don't even use a caliper to measure the rotor either. Let us know what you do.

 

Sad to say ---that there is ABSOLUTELY ---- NO HUB & ROTOR --- on the planet that can be modified to work for this ---- though many have tried different things and failed ........... and wasted a lot of money trying..............
kanter is NOT an answer ---- they DO NOT have and will NEVER have anything for the 1967 - 1968 Full SIze OLDS application, because it is way too limited ---- less than .00001 % of those cars.......,.
That being said, I have TWO (2) last N.O.S. Kelsey - Hayes (ORIGINAL) Front Hub & Rotor Assemblies for this application ---- and N.O.S. ++ Asbestos ++ Brake Pads, to match, so you don't RIP UP to smithereens
these very valuable Hub & Rotor Assemblies............
Not in the library often to use the computer ---- ALWAYS BEST to simply CALL ME -------------------- Craig -- 516 - 485 - 1935 ..... West Hempstead, New York.......

 

Just closing the loop on this. Craig at Mobile Parts still had a set of original rotors, so decided to go that route. I have a couple rabbit holes/leads with some Oldsmobile folks who are looking into what they have piled in their garage. If any other sets of rotors show up from these rabbits, I will let interested parties know.

 

For those of you who have been monitoring these 1967 - 1968 OLDS Full Size Hubs & Rotors -------for weeks ------ or years ------ Delmont1968 (John) was a pleasure to deal with, very intelligent, and, yes,
he is the lucky winner of my only two (2) N.O.S. O.E.M. Kelsey Hayes Front Hub & Rotors -- and also grabbed a set of N.O.S. ++ Asbestos ++ set of pads (still have 30 - something more !!!!!),
a N.O.S. set of ++ Asbestos ++ Brake Shoes for the rear (ONLY have 2 more sets of them presently!!!!!!!!!!!!0 and U.S.A. made Front Wheel Bearings & Seals........

For any of you who have the pleasure to converse and talk with Delmont1968 , you will also agree, I am sure, that he is also a benefit to this website........... Yours, Craig........... thanxxxxxxx again, John....... anytime.......