Detroit Truetrac vs. Eaton posi

[Fachie Motion]

I am Still working on getting my car together. Engine & trans done. Rear end is stock original with 104 k on it
I plan on going with a TA rear cover and 30 spline Moser Axles. I was also going with an Eaton until I heard about this Truetrac.
Anyone using a Detroit Truetrac or Eaton posi I will take any feedback you got.
I am still up in the air on a trans brake @ this point. Car mostly used on street but will see track time. 109 .30 over , ported irons , alky , 60 lb. inj, CPT66bb , Art Car 9in N/LU w/ 2800 stall
Thanks

 

[Slow91z]

I have a TruTrac in my pickup and I like it, but for the Buick I would go Eaton...Some people making good power in the LS1 world have tore up TruTrac's and the good old Eaton is proven to go fast.

Also one of the reasons I wanted a TruTrac for my truck is I put TONS of miles on it, so the TruTrac appealed to me because there is nothing to wear out in it...But I don't drive the Buick enough to wear anything out so Eaton would be my choice.

 

[GNBRETT]

Eaton or Auburn. Same unit I believe. I'm going Eaton with a 30 spline Moser as well. That is a common and proven combo with our cars.

 

[Slow91z]

Eaton or Auburn. Same unit I believe. I'm going Eaton with a 30 spline Moser as well. That is a common and proven combo with our cars.

Not the same unit, Auburn is non rebuildable eaton is.

 

[Fachie Motion]

Eaton or Auburn. Same unit I believe. I'm going Eaton with a 30 spline Moser as well. That is a common and proven combo with our cars.

Talking to Moser on the phone the other day was the first I had heard of using Truetrac in a TB . I will be going Eaton unless someone can convince me otherwise.

Brett - finally got thru to HR to order my bar. Nice people.
Thanks

 

[ronbuick]

My friend Henry put a Detroit, either a locker or a tru-trak, can not remember
but after a couple of K miles this thing would make the most horrible noise when turning, as if bearings and nuts and bolts were coming undone, I personally several yrs. ago went with 30 spline Moser and a factory Eaton rebuild from the guys in Kentucky, can not remember their name either but they still might be a sponsor here, I knew they were when I got my stuff, great to deal with also. HTH And I'm glad I went back to the factory set-up, alot of times OEM is just better.

Ron

 

[Slow91z]

Rear end gears & posi units for Chevy, Ford & Mopar. We sell Ring and pinions & Moser at low prices

I believe this may be who you are talking about.

 

[meanchicken]

I have a True-Trak in my 68 Camaro behind a ZZ502 and TKO-600 and love it. I beat the stew out of it too.
I don;'t know enough about Eatons to say what's better...but I love my True-Trak.

My friend Henry put a Detroit, either a locker or a tru-trak, can not remember
but after a couple of K miles this thing would make the most horrible noise when turning, as if bearings and nuts and bolts were coming undone, I personally several yrs. ago went with 30 spline Moser and a factory Eaton rebuild from the guys in Kentucky, can not remember their name either but they still might be a sponsor here, I knew they were when I got my stuff, great to deal with also. HTH And I'm glad I went back to the factory set-up, alot of times OEM is just better.

Ron

Lockers always make noise around corners (normal) and are not recommended for any kind of cornering duty other than nice n' slow.

True-Traks are nice and quiet...if it was one of these, maybe he got a rotten egg or there was an assembly error.

I hammer down just after the apex in my Camaro and can drift it in perfect control out of the corner one hand on the wheel and one on the shifter.....smoooooooooooooth.....

 

[ronbuick]

that is who it was, Gearsrus, great to business with

 

[turbo nasty]

I just put in a Eaton 28 spline posi unit and moser axle so far so good. knock on wood.......Not a sound or vibration in the turns, etc.

The Eaton came with a bright yellow tag that said
DONT USE SYNTHETIC FLUID WILL HAMPER CLUTCH OPERATION.
I went with dino valivoline and 1 bottle of limited slip additive

 

[GNBRETT]

Not the same unit, Auburn is non rebuildable eaton is.

Strenth wise not rebuildability.

 

[Slow91z]

Strenth wise not rebuildability.

Uh where I come from same unit means same unit...Like same...as in not different in any way...Like, well you know, the same.

I do not think the auburn is even as strong, BUT I don't have any evidence to the fact.

 

[GNBRETT]

Uh where I come from same unit means same unit...Like same...as in not different in any way...Like, well you know, the same.

I do not think the auburn is even as strong, BUT I don't have any evidence to the fact.

I spoke with Bigwood and a couple other veteran TR guys last week and they said they are essentially the same unit as far as durability. I think for a street car either would be fine but most guys I know locally use the Eaton and have had no issues with it.

 

[Lee Thompson]

No ?

Eaton !!!!!!!!!!

 

[meanchicken]

I just put in a Eaton 28 spline posi unit and moser axle so far so good. knock on wood.......Not a sound or vibration in the turns, etc.

The Eaton came with a bright yellow tag that said
DONT USE SYNTHETIC FLUID WILL HAMPER CLUTCH OPERATION.
I went with dino valivoline and 1 bottle of limited slip additive

Another good thing about the true-trak...no clutches to wear out.
But the Moser 12-bolt rear end I have my true-trak in came with a similar note....don't use synthetic.