To make a long story short, I blew my rear up in August 2003 with a hard launch on slicks. I bought new 31-spline Moser axles and a Detroit Truetrac in January 2004 and lost complete interest in the car. I finally decided it was time to get the car out on the road again, so over Christmas, I started working on it. I just got it done yesterday.
Just to note, the installation of everything went very well. No snags - nothing. I set the backlash EXTREMELY tight (0.006") on purpose. It was a bit on the loose end the first time and it ended up nicking up some of the ring gear teeth when I blew it up. With this differential, because of it's clutchless design, you don't need that nasty smelling friction modifier and you HAVE to use synthetic oil (Mobil 1 = 10 bucks a quart.
).
So....yesterday, I screwed everything back together with all the new junk in it but couldn't tear around because it was raining like a mother. Today I took it out and put about 25 miles on it.
The Truetrac seems to be VERY good quality. With all the cones and gears, I thought it would make a little bit of noise - there's absolutely none. No pops or bangs around tight turns and it doesn't hang up at all. Even when it locks up, it's not violent or noisy.
The real test comes with a 6700 RPM launch on slicks.
Joe
Just to note, the installation of everything went very well. No snags - nothing. I set the backlash EXTREMELY tight (0.006") on purpose. It was a bit on the loose end the first time and it ended up nicking up some of the ring gear teeth when I blew it up. With this differential, because of it's clutchless design, you don't need that nasty smelling friction modifier and you HAVE to use synthetic oil (Mobil 1 = 10 bucks a quart.
So....yesterday, I screwed everything back together with all the new junk in it but couldn't tear around because it was raining like a mother. Today I took it out and put about 25 miles on it.
The Truetrac seems to be VERY good quality. With all the cones and gears, I thought it would make a little bit of noise - there's absolutely none. No pops or bangs around tight turns and it doesn't hang up at all. Even when it locks up, it's not violent or noisy.
The real test comes with a 6700 RPM launch on slicks.
Joe

glad you got it ...... on the ground & runnin 

