Needing some u-joint help, aluminum 4th gen shaft.

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Aug 14, 2002 | 08:08 AM

ebmiller88

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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

Needing some u-joint help, aluminum 4th gen shaft.

I just got an aluminum 4th gen shaft and it needs a new rear u-joint. The P/N on the shaft is 12564004, but I don't kow if it's an LS1 shaft or a 1LE shaft. Is there a difference in u-joints and these shafts? What joints have any of you guys installed?

Any advice is appreciated.

Ed

Aug 14, 2002 | 10:16 PM

IROCracer

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From: Great Bend, KS, USA

Doesn't that have to be pressed in anyway?

Take it somewhere and let them figure it out. It's cheap.

I dunno,

Yep.

Kelly

Last edited by ede; Aug 15, 2002 at 08:02 AM.

Aug 15, 2002 | 12:07 AM

xaivior

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Joined: Jun 2002

Posts: 145

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From: Douglas Georgia

Car: Camaro

Engine: 355

Transmission: th-350

Axle/Gears: 3.73 welded

:lala: <--- i was thinking the same thing lol
thats weird...

Aug 15, 2002 | 07:13 AM

JamesC

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From: Lawrence, KS

Car: Met. Silver 85 IROC/Sold

Engine: 350 HO Deluxe (350ci/330hp)

Transmission: T-5 (Non-WC)

Axle/Gears: Limited Slip 3.23's

The part number for the 1LE shaft is as follows: 10085375. I can offer no advice for your shaft since I have no personal experience; however, while the 1LE shaft is a direct bolt-in for 88 and up cars, it isn't for pre-88--at least it wasn't for my 85 IROC, which required a different rear U-joint to fit.

JamesC