Locker for 2wd
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
Nope
Truetrac It's a helical gear unit. It is a smooth operating torque sensing diff.
Performance Products | Detroit Truetrac Differentials
Truetrac It's a helical gear unit. It is a smooth operating torque sensing diff.
Performance Products | Detroit Truetrac Differentials
Hotshot
Joined: Jun 2007
Posts: 10,008
Likes: 7
From: Austin, TX
The Truetrac LS works pretty good from what I can tell. I have one in my front axle and it's done great off road so far. Haven't had any situations yet where it didn't want to spin both wheels. I wouldn't hesitate to put one in the rear axle if I wanted an LS in the rear.
I have a Detroit locker in the rear. I like it a lot. It's awesome off road and I can hardly tell it's there unless I am trying to make a tight U turn. It will chirp the tires a tiny bit trying to turn sharp like that, but under normal driving conditions, nothing wrong with it. No jerking, no popping, nothing.. Kind of impressive being it's in such a short wheelbase truck.
I have a Detroit locker in the rear. I like it a lot. It's awesome off road and I can hardly tell it's there unless I am trying to make a tight U turn. It will chirp the tires a tiny bit trying to turn sharp like that, but under normal driving conditions, nothing wrong with it. No jerking, no popping, nothing.. Kind of impressive being it's in such a short wheelbase truck.
Elder User
Joined: Nov 2010
Posts: 731
Likes: 0
From: Ocean County, NJ
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Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
It's not a limited slip. It's more of a torque diverter.
You spin one tire and it progressively puts more power to the non spinning tire.
It takes fraction of a second to smoothly transfer power to he non spinning tire and you to move forward.
It acts silently and progressively and transfers proportional power to both tires around a corner. Unlike a limited slip which has to "slip" a clutch around the corner.
You spin one tire and it progressively puts more power to the non spinning tire.
It takes fraction of a second to smoothly transfer power to he non spinning tire and you to move forward.
It acts silently and progressively and transfers proportional power to both tires around a corner. Unlike a limited slip which has to "slip" a clutch around the corner.
Fleet Mechanic
Joined: Oct 2010
Posts: 1,690
Likes: 32
From: Delhi, Iowa
i installed a factory limited slip in my 3.55 geared 87 F150 2wd ... a friend of mine built it for me, apparently theres a way to make them bite harder by using extra clutches ... not really sure Exactly what he did, all i know is that the truck is a CHAMP even with the stock 235/75R15's ... i pulled out a few stuck 4x4s this winter, and my truck is lowered 2"...
HIGHLY RECOMMEND IT!!
HIGHLY RECOMMEND IT!!
Cargo Master
Joined: Apr 2003
Posts: 2,408
Likes: 5
From: Parkesburg PA
You can change the shim packs or even slip an extra disk in. I added more shims to my 93 Cobra and if you give it any power going through a turn in a parking lot it will chirp the inside tire. I'm not talking mash the gas, ANY gas and it chirps. No worries about one-wheel-peels...
It was a PITA to get the spring back in...
Depends on the off roading you want to do. If it's light stuff then a trac-loc probably will be fine. But understand that even a re-shimmed version will allow one wheel to spin if there is enough torque differential like say 1 wheel in the air.
Trutrac is the best of both worlds. You can make it lock almost 100% off road and it's invisible for most driving on the street.
It was a PITA to get the spring back in...
Depends on the off roading you want to do. If it's light stuff then a trac-loc probably will be fine. But understand that even a re-shimmed version will allow one wheel to spin if there is enough torque differential like say 1 wheel in the air.
Trutrac is the best of both worlds. You can make it lock almost 100% off road and it's invisible for most driving on the street.
Lead Driver
Joined: Nov 2002
Posts: 9,556
Likes: 43
From: Concord, NC
Limited slip and posi are terms used by different manufacturers for what amounts to the same thing.
The Truetrac is a torque biasing differential and does not lock in the same sense as a locker - if one wheel comes off the ground, it will spin and the other wheel stays put. In that situation, the spinning wheel has no resistance so no torque is being sent to that wheel other than what it takes to overcome friction of the bearings. Zero multiplied by anything is still zero, so the wheel on the ground gets zero torque. Applying some brake in this situation will provide some resistive torque on the wheel in the air, increasing the amount of torque transferred to the wheel still on the ground.
The Truetrac is a torque biasing differential and does not lock in the same sense as a locker - if one wheel comes off the ground, it will spin and the other wheel stays put. In that situation, the spinning wheel has no resistance so no torque is being sent to that wheel other than what it takes to overcome friction of the bearings. Zero multiplied by anything is still zero, so the wheel on the ground gets zero torque. Applying some brake in this situation will provide some resistive torque on the wheel in the air, increasing the amount of torque transferred to the wheel still on the ground.
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
A truetrac tries to equalize wheel speeds.
So in your example if you spin a tire it will try to progressiy increase power to the. On spinning tire.
In the extreme example you're talking about a limited slip will do what your talking about for the most part. It will try to deliver power up to the point of clutch slippage, and then it will slip clutches in the diff, then if you mash the gas and spin like a mainiac you'll ruin the LSD.
In a truetrac it's all gears and you pretty much can't hurt it. But it will apply power to the non spinning tire if you're spinning the other one uncontrollably.
So in your example if you spin a tire it will try to progressiy increase power to the. On spinning tire.
In the extreme example you're talking about a limited slip will do what your talking about for the most part. It will try to deliver power up to the point of clutch slippage, and then it will slip clutches in the diff, then if you mash the gas and spin like a mainiac you'll ruin the LSD.
In a truetrac it's all gears and you pretty much can't hurt it. But it will apply power to the non spinning tire if you're spinning the other one uncontrollably.