rear differential wear
Thread Starter
Safety Car
Joined: Dec 2012
Posts: 3,974
Likes: 673
rear differential wear
So I have a few questions about the rear diff in my 69 corvette I have rebuilt just about everything, 650 hp motor t56 willwood big break kit vansteele coil over suspension vintage air with dewitts rad and borgeson box and I autocross my car so the only thing I have not had rebuilt or replaced is my rear diff and the guy I bought the car from kept impeccable receipts and maintenance records and I was going through the paper work and my rear diff was rebuilt 41 years ago so how can you tell if the rear end is not 100 percent like worn springs and such, so what I am thinking is to replace rear end with a unit that I know is 100 percent . thanks
Tech Contributor
Joined: Aug 1999
Posts: 15,177
Likes: 3,994
From: Connecticut, USA
kept impeccable receipts and maintenance records and I was going through the paper work and my rear diff was rebuilt 41 years ago so how can you tell if the rear end is not 100 percent like worn springs and such, so what I am thinking is to replace rear end with a unit that I know is 100 percent . thanks
Thread Starter
Safety Car
Joined: Dec 2012
Posts: 3,974
Likes: 673
yes
Tech Contributor
Joined: Aug 1999
Posts: 15,177
Likes: 3,994
From: Connecticut, USA
Well there still is life still in it but with that many rears on those springs I just cant see it being 100 percent and I want 100 percent as I am stepping up my racing game and I am also going to install my Toms 31 spline outers with Toms bad *** half shafts thick wall .
I think we spoke at one point in length about how the setup is different for 31’s than 17’s. I you are setting them up you need to know what that is and if you had them done you need to know how they were set up it makes a huge difference
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Well there still is life still in it but with that many rears on those springs I just cant see it being 100 percent and I want 100 percent as I am stepping up my racing game and I am also going to install my Toms 31 spline outers with Toms bad *** half shafts thick wall .
When I went to Tom's outers it scared me when I saw how bad the original 79s were. I had hammered the splines so badly that they were actually rotated a whole spline tooth, but never sheared
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