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So, I'm looking for a new differential for my 7.5" 10-bolt. I've seen many Auburn and Eaton write-ups but it seems to me that it's just personal preference. But what do you guys think of putting in a Torsen differential from a 4th gen SS into a 3rd gen '91 Z28?
I've got a friend who will cut me a deal for $200 for it. The cheapest *new* Auburn or Eaton I can see is about $380. The diffy unit has about 30k miles on it.
Is it a good deal? I'm looking for the best bang-for-my-buck.
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the torsen diff from the 4th gen has some nice disc brakes too!
great deal to me
87 irocz, 305 quadrajet, borgwarner t5
sexy black, t-tops
pa racing tubular k-member, a-arms, lca's, phb
bmr tq arm, 32mm front and 21mm rear sway bar
bilstein struts up front
ls1 brake upgrade up front
unknown subframes, to be installed
lt1 from roadmaster, to be installed
95 z28 vert, LT1 T56
burgandy with black top, and black leather interior
came with edelbrock headers and flowmaster exhaust
FYI, the Torsen wasn't in the SS... SLP removed the Torsen and installed an Auburn limited slip.
I've got one of those take-out Torsens in my IROC and I'm very happy with it. My straight line traction is very good, there's absolutely no chattering around tight corners like with a clutch-style limited slip, and there's also nothing inside that wears out.
You are right about that Jim, but in fact SLP also took out T1 Torsens and installed the heavy-duty T2 Torsen in the 1999 Firehawk. I bought one back in 1999 and installed it in my 1984 axle housing along with some Moser 28 spline racing axles. I wrote it up about seven years ago on this page: http://www.ws6transam.org/10bolt.html
I just bought a rear end from an 01 SS and was wondering what diff was in it.
so, the SS did get the Auburn? does it look like a torsen at all?
My eaton had a cylinder in the center to keep the axles out, while the torsen had a rectangular block, and the rear from the SS has a rectangular block.
My old torsen would spin the wheels opposite while raised off the ground (like an open diff), the eaton would spin both the same direction, and the SS rear spins the same direction.
So, what do you think is in the SS rear I have now?
__________________ 1988 Firebird Formula WS6 305HSR T5 Mods: Lots of them Pentium 60 Mhz, 32MB Ram, S3 Virge 4meg Video Card, 13" Sony CRT, 160MB Hard Drive, Windows NT v3.51 WWW.FormulaZR1.Com
I beat on my aftermarket Zexel Torsen with no complaint from it yet, even with a best of 1.65 60'...d@mn seat broke tho.
1990 IROCZ, 1994 Z28-ASE Certified Auto Tech
"There is one rule for the industrialist and that is: Make the best quality of goods possible at the lowest cost possible, paying the highest wages possible."Henry Ford
One thing to understand about the torsen is how it handles the loss of traction. If one wheel were to lose all resistance the other wheel will not engage. In other words, the car is completely without drive. I know this is hard to believe but more than one person has explained this to me with an example of what happened to them.
The only way to get power to the ground in this situation is to apply a very slight amount of braking. This is not the case with the auburn.