posi rear end
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Junior User
Joined: Jun 2006
Posts: 71
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From: SW MN
posi rear end
I like to do burn outs on my 69' F250 camper special with a 390 because it has plenty of power to do them. The only problem is that most of the time, I only have one wheel spinning. Sometimes, if I am lucky, I will get 2 spinning.
What do I need for the rear end for both to spin. I have heard of Posi and Limited Slip, but is there some kind of "add on part" that I can put in my current rear end.
Thanks
What do I need for the rear end for both to spin. I have heard of Posi and Limited Slip, but is there some kind of "add on part" that I can put in my current rear end.
Thanks
New User
Joined: Jan 2008
Posts: 0
Likes: 24
Posi-Traction is a GM term.
Ford is Limited Slip or Traction-Loc
You can just swap the diff (If axle splines are the same) or the whole axle housing.
Look for a truck an B or C (number) ...code axle on the door plate for a Dana axle.
Ford is Limited Slip or Traction-Loc
You can just swap the diff (If axle splines are the same) or the whole axle housing.
Look for a truck an B or C (number) ...code axle on the door plate for a Dana axle.
Posting Guru
Joined: Jul 2003
Posts: 2,222
Likes: 1
From: East Central Florida
A carrier assembly equipped with a set of 4 pinion (spider gears) acts like a FoMoCo or other type traction lok/ limited Slip/ Detroit locker.
If you back up straight on it, then drive straight ahead to a launch point, it will lock both wheels until you turn, swerve, brake, or otherwise deviate from going straight ahead. I can shred a set of tires with my 460 & a 4 pinion carrier, 9", set up. Although I must admit it's rather pointless.
But the set up also gets me great launches in the 1/4 mile and if I "breath" the loud pedal right I don't smoke any tires at all, and can cut a 12.60 every time. . . . .
FBp
If you back up straight on it, then drive straight ahead to a launch point, it will lock both wheels until you turn, swerve, brake, or otherwise deviate from going straight ahead. I can shred a set of tires with my 460 & a 4 pinion carrier, 9", set up. Although I must admit it's rather pointless.
But the set up also gets me great launches in the 1/4 mile and if I "breath" the loud pedal right I don't smoke any tires at all, and can cut a 12.60 every time. . . . .
FBp
New User
Joined: Sep 2006
Posts: 14
Likes: 0
I'm new here but alot of us mopar guys have DoctorDiff(Cass Eslick in Polson,MT) build the dana's and 8 3/4's for our cars,he does excellent work and his prices are hard to beat.
Here's his website http://members.aol.com/doctordiff
On your truck you could swap in a power-lock,track-lock or detroit locker in the dana,I would choose the power-lock.
Here's his website http://members.aol.com/doctordiff
On your truck you could swap in a power-lock,track-lock or detroit locker in the dana,I would choose the power-lock.
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