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04-14-2010, 05:16 PM #1
Torsen/TrueTrac vs PosiTrac in the rear diff
Yes Iím a noobie, and yes my second post is a question.
I did some searching and only found a few threads listing TrueTrac and PosiTrac as potential replacements for exploded G80s. If my question has been addressed somewhere please let me know.
Iíve got a 2004 Silverado 1500 4x4. The rear diff is open (no G80) and has a 10 bolt cover (8.6Ē I believe). Iím looking for better traction on snowy/icy roads and for occasional light off-roading and plan to install some sort of limited slip in the rear diff. I like TrueTracís claims of being low maintenance, basically install and forget. However I canít find any reports on how they actually work long term in the rear diff of a full sized pickup. Iíve found articles where people put TrueTrac in the front diff with a locker in the rear.
Iím wondering if anyone has experience with TrueTrac in the rear diff and any insight on how it would work compared to PosiTrac.
Thanks.2004 Silverado 1500 - 4x4 - Ext Cab - 6.5ft Box - Stock other than camper shell.
Soon to own an 2010 Equinox
04-15-2010, 11:13 AM #2
Torsen was a popular unit added to camaros/firebirds...have a better rep than the gov bomb G80Still Loyal to GM after all these years...:shocked:
2006 Impala LT 3.5L
2005 Silverado WT small cab/longbed 4x4 4.3L V6
1999 Grand Am 3.4L in TX w/ our youngest
1993 GMC Jimmy 4.3L 4 door 4x4 'Ole Rusty' - 'SOLD'
1988 S-10 small cab/longbed HT3.4L Crate Engine
1970 Nova 250 I-6, factory 3 sp floor shifter.
1968 Chevelle 'Nomad' Wagon 250 I-6 w/ 3 on da' tree.
04-15-2010, 12:15 PM #3
The only drawback to the truetrac over a normal limited slip or locker is that the truetrac needs a little bit of traction on the slipping wheel in order to engage. If you're hung up on a snowbank, or on some off road trail with one wheel coming off the ground, it won't work. For normal street driving they do work and don't require any special maintenance.
04-17-2010, 01:34 PM #4
Maybe look into a selectable like an Eaton Elocker or ARB. One of the good things about a selectable is that you can engage and disengage the unit anytime you want extra traction. When these are locked they are a true locker, when unlocked you will have an open diff.2011 Chevy Silverado 3500HD, Dmax/Allison, Taupe Gray Metallic, Line-x over the Rail & Rockers, S&B Intake, Banks Monster Exhaust, Rigid Dually D2's, Cognito Leveling Kit, Cognito Steering Braces plus much more.
"Suburban" There is no Substitute.:great:
SOLD - My Loaded up 02 2500 Suburban.
04-17-2010, 05:51 PM #5
The True-Trac has a great reputation, and is perfect for a truck driven in snow. I will be installing two in my plow truck. You sometimes have to cheat with the brakes to get it to engage but no big deal.
Way better than a Gov Bomb.
As for durability, I have a friend with a True-Trac in the rear of his 2500 with a souped up 496. It was his first choice for a diff.
An E-Locker or ARB is great, but expensive.
Last edited by 2COR517; 04-17-2010 at 05:53 PM.When you hear hoofbeats, look for horses not zebras.
04-17-2010, 08:28 PM #6
torsen/truetrac vs positrac in the rear diff
I DESTROYED two torsens in less than four months in my Suburban.
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