Yukon posi unit

[Gliderider06]

Has anyone had any experience with the Yukon duragrip posi units? They say they are stronger than the factory units with nodular iron and 4320 gears. Just curious about it.

55-64 GM 55P 8.2" Yukon Duragrip Posi LSD Differential 17 Spline YDGGM55P-3-17-1 | eBay

Yukon Duragrip. Application: 1955-1964 GM 55P Rearend (Belair, Impala), (1955-1962 Corvette) (will. 1955-1964 GM 8.2" 55P Chevy Belair Impala Corvette Powergrip Posi LSD 17 Spline. Get longer life and better traction with the heavy duty Yukon Dura Grip Positraction. ).

www.ebay.com

 

[La Hot Rods]

What gear are you running and what are the plans for this rear end?

 

[Gliderider06]

I have 3.36 and 3.73 gear sets and an open rear housing. Probably use the 3.36 behind my M-20 trans. No racing, just street fun. On my old 61, I broke spider gears a few times, but it was behind a reverse manual trans. Just want something a bit stronger

 

[rsavage]

About five years ago, I had a Yukon posi carrier put in a '70 GTO I owned. Used the original 3.55 ring and pinion. I didn't have any problems with it but it didn't get a lot of use and I didn't use it hard.

 

[425/409ER]

I have a Yukon posi in the 8.5 10 bolt I just took out of my Camaro, it worked great. No chatter and as good as an Eaton IMO. Much nicer then the factory posi that held up drag racing the thing for 10 years. I will be getting one for the 12 bolt here soon.