10 Bolt dilema.....

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Jul 1, 2002 | 10:28 AM

black88ta

Thread Starter

Junior Member

Joined: May 2002

Posts: 52

Likes: 0

From: Nazareth, PA

Car: 1988 GTA

Engine: L98

Transmission: 700R4

Axle/Gears: 3.27:1

10 Bolt dilema.....

Hey guys;
I have a bit of a problem... I am considering rebuilding my 10 bolt rear. I got a used on from a junkyard and it is a 3.42 open. It sucks. I have a 3.08 open in the garage with blown bearings. I would like to rebuild that one, pretty much stock with the exception of a posi unit and maybe 3.23 gears. I drive open highway alot, and do not want high rpm cruising. I would like to know if anyone knows where to get a decent posi, new or used. Also, any recomendation on the unit itself....i.e. manufacturers. Thanks in advance for the info...
Jason
P.S. Would it be better to throw in a 12 bolt? And where can I find one for that model.

Jul 1, 2002 | 11:40 AM

Ricktpi

Supreme Member

Joined: Mar 2002

Posts: 1,654

Likes: 2

From: Lower Salford, PA

Car: 1987 Camaro Z-28

Engine: 6.3L Victor EFI

Transmission: Tremec TKO 600

Axle/Gears: Moser 9"/4.11 Trac-Lok

If you are on a budget, forget the 12 bolt, you really don't need it with a 305. You can get an Auburn posi from Summit or Jeg's.

Jul 1, 2002 | 03:37 PM

AlkyIROC

Moderator

Joined: Jul 1999

Posts: 17,262

Likes: 168

From: 51°N 114°W, 3500'

Car: 87 IROC L98

Engine: 588 Alcohol BBC

Transmission: Powerglide

Axle/Gears: Ford 9"/31 spline spool/4.86

The only 12 bolt or 9" that will fit under a third gen is an aftermarket one. Expect to pay around $2000 for a complete bolt in diff.

Jul 1, 2002 | 03:51 PM

ebmiller88

Supreme Member

iTrader: (7)

Joined: Mar 2001

Posts: 6,420

Likes: 5

From: Fort Mill, SC, USA

Car: '88 Iroc, '91 RS, and a '70 RS

Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag

Transmission: A4, A4, slated to be a T56

SC is a bit of a hike, but I have a 2.77 9 bolt disc posi if you want it. I just pulled it last week, 60,000 miles. M/C, prop valve, and all cables included. It's an option.

e-mail if interested...

Ed