I'm putting in a new posi and doing the usual street performance upgrades (welding the tubes, 28 spline Superior Axles, Solid Pinion Spacer, 3.73's GM gears) but was wondering about the Detroit or Eaton. I'm not familiar with Detroit Tru Trac - is this a good unit? Is there any large difference between the two? Which would be recommended for the street? Any problems with the two choices? Thanks.

 

I just put in my 3.42s and eaton locker. So far so good, the locker is doing what it was made for. People have given me a lot of flack about putting the locker in. I guess they aren't very strong or hold up very well. But i only have a near stock 305, and I don't beat my car hard. Just my 2 cents.

 

the detroit true trac is a gear driven diff that doesnt use any clutches, so it is very strong

 

and it's cheaper than the Eaton...does the Detroit make any noises? I hare of some lockers making noises as you turn.

 

theres two detroit units, one is a locker, which you dont want, the other is a true trac, its a limited slip just like every other one but gear driven vs. clutches

 

the tru trac makes no noise unless you break it, I`m running one with slicks and a brake with a big block, okay so far.

 

True - I don't want a locker.

I looked online last night and it seems alot of 4x4's use the Detroit Tru Trac. They like it cause it can handle the abuse and torque. Also Greezemonkey is running one behind a transbrake. So it's a strong, sturdy unit that would hold up well for the street (and the occasional burnout) that doesn't make any noise. I think this is the unit that suits all my needs. Thanks everyone.

 

That is just what I wanted to hear. I have not heard anything bad about the truetrac. I have even talked to their tech line and they will answer any questions. I was going to beef up my 10 bolt, but after I talked to them they covinced me not to go that way. He said the truetrac is a strong differetial . Hard to break. As we know the 10 bolt is weak to start out with. I figured beef the 10 up with a truetrac. This would strengthen it. He said yes it would , but this is not the weak point of the 10 bolt rear end, and this would only make the weak point weaker. So I went with the moser 9 and now I am looking for a good thirdmember with a Truetrac.