pinion nut

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May 29, 2003 | 09:03 AM

RJR99SS

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Joined: Oct 2001

Posts: 433

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From: Trumbull County Ohio

pinion nut

what size socket does it take for the pinion nut?

May 30, 2003 | 07:04 AM

RB83L69

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Joined: Jul 1999

Posts: 18,457

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From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

1¼"

Jul 2, 2003 | 04:05 PM

Nick89TA

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Joined: Aug 1999

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From: IL, USA

i think it is different on the 9-bolts. Anybody know what size the 9-bolt pinion nut is specifically?
thanks

Jul 2, 2003 | 09:21 PM

89gta383

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From: St. Augustine, FL

Car: 89 GTA

Engine: 383

Transmission: 4L80E

Axle/Gears: 12 bolt-3.73

Same, although a 28mm is a little bit tighter fit on the nut. Mine is apart now, because the damn nut backed off.

Jul 3, 2003 | 06:55 PM

Nick89TA

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Joined: Aug 1999

Posts: 97

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From: IL, USA

Actually, i just did the work on the rear today, and the nut on both the 9-bolts I have took a 1 1/16" socket. Yeah for the 1/2 inch impact gun, it ripped the nut right out. I plan to use a solid spacer, then either use loctite or tackweld the nut to the pinion. Good luck man.