Posi Rear End

JWTurner1951 · Post by **JWTurner1951** » Wed Jul 18, 2012 9:54 pm

For you all in the know, what does it cost to convert a 1972 F250 from non-posi to a positraction rear rear?

cdeal28078 · Post by **cdeal28078** » Thu Jul 19, 2012 11:15 am

Depends on what type you are installing and if you are doing the work yourself or not.
I just went from an open 3.0 gear to a 4 pinion 3.5 gear. I had the case and gears. I paid a local well known builder to install HIS 4 pinion differential and my gears. He set it up. I took him the gear so I did the work off pulling and installing. I have around $200 in it. It is not a "posi" but a 4 pinion. It will spin both wheels most times IF both are on the same type surface and the tires are the same and have the same amount of air in them according to the guy that built it. I am very happy with the set up. Something to think about. It is also supposed to be a very strong system.
clint

HIO Silver · Post by **HIO Silver** » Fri Jul 20, 2012 12:10 am

JWTurner1951 wrote:For you all in the know, what does it cost to convert a 1972 F250 from non-posi to a positraction rear gear?

Your rig has a 9-inch?....About $450-$500 plus labor.

Btw, the term "positraction" or "posi" is a Bowtie term. We blue oval boys like to say "Traction-Lok"

sargentrs · Post by **sargentrs** » Fri Jul 20, 2012 4:36 am

I installed one of these. http://www.richmondgear.com/powertrax/noslip.html Around $500 + labor to reset ring and pinion. While I had it torn down I replaced all the bearings and seals for another $100+.

Kurt Combs · Post by **Kurt Combs** » Fri Jul 20, 2012 2:02 pm

A 72 F250 should have a dana 60 under it, are these prices appropriate for a dana?

sargentrs · Post by **sargentrs** » Fri Jul 20, 2012 9:23 pm

The PowerTrax has variations to fit either at the same price.

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