Rear End Questions
06-30-2006, 01:33 PM
#1
Harder Faster Stronger
Thread Starter
Join Date: Sep 2004
Location: Louisville, Kentucky
Posts: 183
Rear End Questions
whats up everybody.. I have an 00 GT that I want to get a 31 spline in and put down some crazy low 60fts
Basically I'm thinking either Moser or Strange 31 spline Axles and I'm completely unsure about the differential. I already have 4.10 gears to put in it. I also want to run some drag slicks. Anything else I'll need, let me know! This is mainly for the track obviously, but I still need it to be streetable, its my DD!
My main question though is about the differential. This car is my daily driver, and I've heard the Detroit True Trac isn't the best thing for daily driving on the street and that I should go with something like the Eaton Posi that uses CF discs instead. I know those can wear out, unlike the tru trac, but how hard would it be to replace them?
Basically I'm thinking either Moser or Strange 31 spline Axles and I'm completely unsure about the differential. I already have 4.10 gears to put in it. I also want to run some drag slicks. Anything else I'll need, let me know! This is mainly for the track obviously, but I still need it to be streetable, its my DD!
My main question though is about the differential. This car is my daily driver, and I've heard the Detroit True Trac isn't the best thing for daily driving on the street and that I should go with something like the Eaton Posi that uses CF discs instead. I know those can wear out, unlike the tru trac, but how hard would it be to replace them?
06-30-2006, 02:00 PM
#2
TECH Senior Member
Join Date: Jan 2002
Location: Katy, TX
Posts: 12,763
Since its a daily driver, I'd recommend either a good ol' Ford truck 31 spline Trac Loc, or the Eaton if you like to spend money. The Eaton is a bad *** unit, I have one in my 12 bolt GM rear (Formula). But, for the money you can't really beat the truck diff. If you need it stiffer, you can always stack it up with a couple more frictions too.
I went with a truck t'loc, with Moser axles in my coupe
I went with a truck t'loc, with Moser axles in my coupe
06-30-2006, 04:39 PM
#3
11 Second Club
Join Date: Aug 2005
Location: Tampa, FL
Posts: 742
I agree with brains. Back when my car was my DD I had the superman diff (detroit locker). lol. It clunked, clanked, rattled, you name it. My habits had to change a little but it wasn't bad after I got used to it. But it felt good going to the track and dropping the hammer at 7000rpms and knowing the diff wasn't going to leave me stranded. -Mark
07-03-2006, 08:36 AM
#6
TECH Senior Member
Join Date: Mar 2006
Location: College Station
Posts: 5,154
There is nothing wrong with the Ford unit, unless you plan on putting down a ton of power (500+). I picked up my diff off ebay for $60. Total I have $140 in my built rearend
As far as axles go, I like my Superiors. They'll work fine for what you'll need. Unless you plan on tons of power, in which case I would go with Mark Williams.
As far as axles go, I like my Superiors. They'll work fine for what you'll need. Unless you plan on tons of power, in which case I would go with Mark Williams.
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