[Jeff2000GT]

Need a straight answer here.. I've been getting a lot of info i'm not sure about..

I have a 2000 GT with the Stock 8.8" rear end and posi and 3.27 gears. I'm getting 3.73's installed and was told that having the posi freshened up as well was a good idea.. American Muscle sells a Ford 8.8" "Traction-LOK" rebuild kit w/ carbon discs. Does this kit work in the factory GT Posi thus effectively turning it into a 28 spline version of the Cobra "Trac-LOK" differential since it upgrades the fiction discs? Or is it only intended to be used to rebuild an original Trac-LOK differential?

[casper gt]

all Ford limited slip diferentials are trade named by Ford as "Traction Lock (Trac-Lok for short) Differentials" the term "posi" refersto GM's version of a limited slip differential. that being saud, yes any Ford clutches will fit in any Ford limited slip differential ( easier way to say it is ALL GT's have had Trac-Lok's since the 1980's to present, so yes those clutches will work in your rear & you most defenately should change the clutches while the rear is appart) shop around though most suppliers have them WAY CHEAPER than the ones you have found.

[Jeff2000GT]

Originally Posted by casper gt all Ford limited slip diferentials are trade named by Ford as "Traction Lock (Trac-Lok for short) Differentials" the term "posi" refersto GM's version of a limited slip differential. that being saud, yes any Ford clutches will fit in any Ford limited slip differential ( easier way to say it is ALL GT's have had Trac-Lok's since the 1980's to present, so yes those clutches will work in your rear & you most defenately should change the clutches while the rear is appart) shop around though most suppliers have them WAY CHEAPER than the ones you have found.

Thanks for the answer.. i was actually reading a write-up done by a member here about rebuilding a differential and he said if you are upgrading from standard discs to carbon discs you have to buy 2 rebuild kits.. i'm still trying to figure out why.. i already have the rebuild kit, i bought the FRPP kit from AM.. kinda short on shopping time.. i'm getting the rebuild done tomorrow because i'm moving out of state in 10 days.. i'll just take all the stuff to my mechanic and let him sort it out i suppose! I hate letting other people work on my car.. first time it's been in a shop in 3 years.. but i have too much stuff that needs done and i don't have time, tools, or location to do it.. (before anybody criticizes me for not working on my own car!) lol

[casper gt]

you only need the extra kit (& you really don't even need it, you just turn the old outside one around) if your adding a clutch & taking out a steel. in your case just install the carbon fiber kit as-is & you'll be fine.

[ryans88gt]

Yes, if you want 4 friction discs per side, you need 2 kits, if you want all carbon fiber clutches. I typically reuse one clutch when using the normal rebuild kit (the clutch against the carrier, only half of it is being used). You don't have to do this, but it effectively increases the friction surface from 5 sides to 7 sides (one side of one clutch is always against the carrier and thus is not in use). So by using 4 clutches you are essentially increasing your surface area by 40%.

If you buy 1 carbon fiber kit and reuse one original clutch (the one against the carrier, flipped over) you would have 6 carbon fiber friction surfaces and one regular clutch friction surface. Still probably better than 5 carbon fiber friction surfaces.

Hope that helps.

[Jeff2000GT]

Originally Posted by ryans88gt Yes, if you want 4 friction discs per side, you need 2 kits, if you want all carbon fiber clutches. I typically reuse one clutch when using the normal rebuild kit (the clutch against the carrier, only half of it is being used). You don't have to do this, but it effectively increases the friction surface from 5 sides to 7 sides (one side of one clutch is always against the carrier and thus is not in use). So by using 4 clutches you are essentially increasing your surface area by 40%. If you buy 1 carbon fiber kit and reuse one original clutch (the one against the carrier, flipped over) you would have 6 carbon fiber friction surfaces and one regular clutch friction surface. Still probably better than 5 carbon fiber friction surfaces. Hope that helps.

very much.. thanks!

[1TITAN]

i need to have mine rebuilt as well and saw these carbon kits... what exactly are they improving over regular clutches..... i guess what im trying to ask is, is there a performance gain, or adurability increase or something? im curious

[casper gt]

Originally Posted by 1TITAN i need to have mine rebuilt as well and saw these carbon kits... what exactly are they improving over regular clutches..... i guess what im trying to ask is, is there a performance gain, or adurability increase or something? im curious

they grip better but usually wear out faster.

[Jeff2000GT]

Originally Posted by 1TITAN i need to have mine rebuilt as well and saw these carbon kits... what exactly are they improving over regular clutches..... i guess what im trying to ask is, is there a performance gain, or adurability increase or something? im curious

The biggest difference i noticed since the install is that when i do lose traction, instead of the car kicking to one side it stays straight.. seems to distribute power more evenly over the stock friction discs..