Powertrax No-Slip vs. Eaton or Auburn Posi
#1
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Member
Joined: Jul 2005
Posts: 186
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From: North Carolina(but you'll never take the DC out of me!!!)
Car: '91 Formula,'02 Silverado,'15 200s
Engine: L98, LQ4, and 3.6 Pentastar
Transmission: 4L60/4L80E/9HP48
Axle/Gears: 2.73posi/3.73posi/3.73
Powertrax No-Slip vs. Eaton or Auburn Posi
I'm trying to decide which unit to buy. I currently have a 10 bolt with
2.73 gears and open differential. I'm keeping my 2.73's because I am not really concerned about being quicker in the 1/4 mile as I am about MPG's
and top end(my goal: to see if I can make that 140 mph speedo go into
the world without #'s with my boat anchor 305,lol). They are all relatively in the same price range, about $450.00. I am considering Powertrax because I don't have to mess with my ring and pinion set-up and my axle/carrier/pinion bearings are all relatively new. Does anyone have any suggestions,info, or
pros & cons about either one of these units? If I can save up the money
and the wife let's me(lol), I would consider the Zexel-Torsen unit from a
4th gen and swap in 28 spl. axles from an 89-92 3rd gen. I here those units
are pretty good. If anyone's got any input about the Zexels, you know like
if you can get a 2 series carrier, that would be most appreciated.
2.73 gears and open differential. I'm keeping my 2.73's because I am not really concerned about being quicker in the 1/4 mile as I am about MPG's
and top end(my goal: to see if I can make that 140 mph speedo go into
the world without #'s with my boat anchor 305,lol). They are all relatively in the same price range, about $450.00. I am considering Powertrax because I don't have to mess with my ring and pinion set-up and my axle/carrier/pinion bearings are all relatively new. Does anyone have any suggestions,info, or
pros & cons about either one of these units? If I can save up the money
and the wife let's me(lol), I would consider the Zexel-Torsen unit from a
4th gen and swap in 28 spl. axles from an 89-92 3rd gen. I here those units
are pretty good. If anyone's got any input about the Zexels, you know like
if you can get a 2 series carrier, that would be most appreciated.
#2
Joined: Aug 2006
Posts: 12,666
Likes: 50
From: Central NJ
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Powertrax No-Slip vs. Eaton or Auburn Posi
the power trax is more of a pain than its worth, and is not a very "comfortable" thing to drive with. I speak from experience.
go with a posi, it may require a little more setup work, but you will be much happier in the end.
the zexel would be a good deal if you can get one
go with a posi, it may require a little more setup work, but you will be much happier in the end.
the zexel would be a good deal if you can get one
#3
Supreme Member
iTrader: (1)
Joined: Apr 2000
Posts: 5,321
Likes: 4
From: Northern CA.
Car: '82 Z28
Engine: 350
Transmission: TH400 4,000 stall
Axle/Gears: Currie 9", 4.56 gears
Re: Powertrax No-Slip vs. Eaton or Auburn Posi
Seconded on going with a posi. It's a bit more predictable than the powertrax unit in corners. The powertrax will make the front of the car jump if you get on and off the gas while the posi is nice and smooth all the time.
#4
Member
Joined: Nov 2005
Posts: 100
Likes: 0
From: NewBrunswick,Canada
Car: 85 Z28
Engine: 383
Transmission: TH350
Axle/Gears: 3:73
Re: Powertrax No-Slip vs. Eaton or Auburn Posi
Even with the weaker "Street" springs in the locker it is still not operate very smoothly and is quite noisy.
#5
Supreme Member
iTrader: (2)
Joined: Nov 2000
Posts: 1,021
Likes: 0
From: Newington, CT
Car: 88 IROC
Engine: 5.7 RamJet
Transmission: T56
Axle/Gears: Dana44 4.10
Re: Powertrax No-Slip vs. Eaton or Auburn Posi
why? you say you aren't concerned with fast 1/4 mile times so why bother with a posi? The only usefull thing it adds is traction from a stop which you don't seem to want.
#6
Thread Starter
Member
Joined: Jul 2005
Posts: 186
Likes: 0
From: North Carolina(but you'll never take the DC out of me!!!)
Car: '91 Formula,'02 Silverado,'15 200s
Engine: L98, LQ4, and 3.6 Pentastar
Transmission: 4L60/4L80E/9HP48
Axle/Gears: 2.73posi/3.73posi/3.73
Re: Powertrax No-Slip vs. Eaton or Auburn Posi
IT'S MY FREAKIN CAR, AND I WANT TO PUT A POSI REAR IN IT!!!!!!!!!!! Who are you to make it seem like I'd be wasting my time doing this by asking me why? That's like me asking you why did you go through the trouble of putting a Dana 44 and T-56 in your IROC. It's really none of my business why. I think it's cool that your 19 year old IROC is still on the road, it's probably in way better shape than my poor battered T/A. I posted this
thread to find out pros,cons, and info on the above mentioned posi units, and to get suggestions on which one to buy. I don't mean to be an a**hole Jay, but I'm looking for information to help me make my 3rd gen more enjoyable to me and all you've done is answer a question with a question. Now if you have any info or comments on the above mentioned units, then I will more than welcome your input and suggestions. If not, than I humbly
ask you to unsubscribe to this thread and move on to threads that are of better interest to you. Thank you.
Last edited by darkride86T/A; 09-24-2007 at 01:45 AM.
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