Rear diff
Thread Starter
5th Gear
Joined: Jun 2015
Posts: 5
Likes: 0
From: Tucson AZ
Rear diff
I want to change my rear diff. I believe it's 3:08 and want to go to 3:73. I have seen some posts on the best places to go and I have looked into it but can't remember the place. I believe it's in either Indiana or Ohio. Forget the guys name but remember it was $800 for a rebuilt 3:73. Any advise is appreciated. Thanks
Melting Slicks
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
I want to change my rear diff. I believe it's 3:08 and want to go to 3:73. I have seen some posts on the best places to go and I have looked into it but can't remember the place. I believe it's in either Indiana or Ohio. Forget the guys name but remember it was $800 for a rebuilt 3:73. Any advise is appreciated. Thanks
Duntov Motors is one of them. Google Duntov Motors for an address and phone number.
Team Owner
Joined: Jul 2004
Posts: 40,244
Likes: 786
From: Redondo Beach, California
I want to change my rear diff. I believe it's 3:08 and want to go to 3:73. I have seen some posts on the best places to go and I have looked into it but can't remember the place. I believe it's in either Indiana or Ohio. Forget the guys name but remember it was $800 for a rebuilt 3:73. Any advise is appreciated. Thanks
Have you considered the 5 speed tranny options?
Burning Brakes
Joined: Mar 2006
Posts: 829
Likes: 131
From: Spartanburg SC
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Melting Slicks
Joined: Feb 2003
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From: Auburndale Florida
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I have always heard good things about Van Steel in Clearwater, FL. I plan on taking my numbers matching/correct 3.08 diff for a rebuild and gear set change, to a 3.55. About an 90 minutes from my home. So its a huge savings not having to crate and ship.
Don't buy a used diff unless you are 100% sure about it's condition. I bought a used 3.55 out of a '79 here on the forum. Advertised as "under 40k miles, quiet, like new" yada yada yada. Seemed OK on the bench. Roars like crazy at 60 mph. Gears look like new. I think it's a problem with one of the pinion bearings.
Don't buy a used diff unless you are 100% sure about it's condition. I bought a used 3.55 out of a '79 here on the forum. Advertised as "under 40k miles, quiet, like new" yada yada yada. Seemed OK on the bench. Roars like crazy at 60 mph. Gears look like new. I think it's a problem with one of the pinion bearings.
Last edited by mbeeman350; Jun 15, 2015 at 10:30 AM.