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Old 04-16-2007, 04:00 PM
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Just how rare are 1970 Oldsmobile disc brake rotors?

I am told that nobody is making disc brake rotors to fit a 1970 Oldsmobile Delta 88. I did some searches for them and I have came up with nothing.
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Old 04-16-2007, 05:33 PM
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http://www.autopartsway.com/autopart...PART=XOM185881
http://market.autopartsfair.com/olds...em-328345.html
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Old 04-16-2007, 07:01 PM
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try autozone
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Old 04-16-2007, 07:03 PM
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Go to www.NAPAautoparts.com
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Old 04-16-2007, 09:10 PM
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This thread has been ongoing at the AACA.org forum for some time. The rotors are NOT available from NAPA/Autozone/Advance, et al. As for the two other links (autopartsway and autopartsfair), well the listings are flat wrong. Autopartsway shows the same rotor for 70-77. In fact, only 71-76 are the same (and are commonly available). The 70-earlier rotors are different and the 77-up are also different. Autopartsfair is even more flaky. Yeah, I believe that I can get Brembo rotors with a $1,600 list price for only $116 apiece.

For what it's worth, Hollanders shows 67-68 as being the same and 69-70 as being the same.
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Old 04-16-2007, 09:45 PM
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I will try to get you a Wagner part number in the morning.

We have an old paper catalog called the "Wagner Brake Parts Library" and it amazes me the things that I have found in there ... like brake cables for my 66.

I'm not saying that they'll be available from Wagner ... in fact I tried both Raybestos and Wagner (Federal Mogul) sites and came up empty ... but perhaps some auto parts chain may still have them in their inventory somewhere.

If someone can come up with the GM part number (even if obsolete) try running it through partsvoice.com ... which is a site designed to help dealerships sell their obsolete inventory.
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Old 04-17-2007, 05:31 PM
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Quote:
Originally Posted by joe_padavano
This thread has been ongoing at the AACA.org forum for some time.
So, what has the AACA forum come up with on this?
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Old 04-17-2007, 07:45 PM
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Quote:
Originally Posted by 73oldsman
So, what has the AACA forum come up with on this?
Same answer - not available. I assume that's why it's being asked here.

The problem is that few B-body Oldsmobiles came with discs in 67-70, fewer still are on the road anymore, so the replacement vendors have stopped making parts.
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Old 04-18-2007, 10:10 AM
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As Promised:

I had to go back to the 1985 "Brake Library" edition to come up with a part number, as it was not even in the 1989 catalog.

Hub and Rotor Assy: Wagner P/N BD60235 ... and it is listed for 69-70 only... 88/98 models.

Checked the buyer's guide, too ... hoping to see that they fit some other makes/models ... NOPE.

There is no stock in our 5 branches, nor in the Calgary Distribution Center.

Good luck!
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Old 04-18-2007, 04:08 PM
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So I guess if you're in this situation and have run your rotors to their max limits, then you have to convert your system to a drum brake set-up up front?!! That sux!
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Old 04-18-2007, 06:52 PM
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Quote:
Originally Posted by joe_padavano
Same answer - not available. I assume that's why it's being asked here.

The problem is that few B-body Oldsmobiles came with discs in 67-70, fewer still are on the road anymore, so the replacement vendors have stopped making parts.
Hmmm ... this "B" body comment got me thinking.

My memory is getting kind of weak on this stuff, but I seem to recall that Oldsmobiles (possibly Pontiacs and Buick's, too) used to have a different bolt-circle than the Chevies ... correct?

If that's the case ... perhaps a set of chevy rotors might be the same dimensionally ... just have a different bolt-circle on the hub?

If that was the only difference, you could either swap rims (and rear axles?) or have the Chevy rotors re-drilled for the Olds bolt pattern?

Hmmm (some more) ... "Rotors" WERE sold as "Hub and Rotor Assemblies" for this model ... maybe you could seperate the rotor from the Chevy hub and put it back on the Olds one?

Just some thoughts ... hope they help.
Don

Edit: My ideas above don't look real promising.

I found a list of "B" bodies for that model year range at CPP
and set to the task of checking: Pads, Calipers, Wheel Seals, and Inner/Outer Wheel Brgs (at napaonline.com) ...

Pads: 728A for all of them
Brgs: BR5 inner, BR3 outer on MANY of them
Calipers: 242-2020 for the Delta 88 ... unique.
Wheel seals: 20113 ... also unique.

At this point ... I'm thinking that your only hope is to remove the new rotor and install it on your old hub (IF they're the same dimensionally ... )

Last edited by 66GMC; 04-18-2007 at 07:28 PM. Reason: Checked Ideas.
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Old 04-18-2007, 09:09 PM
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EGGE machine may be able to cut a new set, they normally do engine parts, but maby. Ask Bob and he'll tell you.
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Old 04-20-2007, 11:46 AM
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Thanks! A guy asked me if I could find him a set. I now have two used pairs of them. I hope he still wants a pair.
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