CLASS RACER FORUM - View Single Post - Question on 68-72 Olds type "O" Rear

Fred Rice · 11-17-2012, 10:32 PM

Well it looks like I have procured a ring and pinion set.....

(picture for Mark...lol)

My question is ....as these are original GM pieces, will they fit the 3:42 carrier that is in the car now? I have 31 spline axles. I have heard of a spacer being needed on some of these applications.Would I need a spacer with a factory set of gears vs. aftermarket or visa versa? Just want to make sure before we dig into this..Any help on this will be appreciated.

Regards,
Fred

11-17-2012, 10:32 PM	#10
Fred Rice Junior Member Join Date: May 2008 Location: Cary, NC & Lake Gaston, Va. Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Re: Question on 68-72 Olds type "O" Rear Well it looks like I have procured a ring and pinion set..... (picture for Mark...lol) My question is ....as these are original GM pieces, will they fit the 3:42 carrier that is in the car now? I have 31 spline axles. I have heard of a spacer being needed on some of these applications.Would I need a spacer with a factory set of gears vs. aftermarket or visa versa? Just want to make sure before we dig into this..Any help on this will be appreciated. Regards, Fred Last edited by Fred Rice; 11-17-2012 at 10:49 PM.