Rear axle replacement

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Jun 2, 2006 | 08:38 PM

theraider41

Thread Starter

Joined: Jun 2006

Posts: 1

Rear axle replacement

I have to replace a rear axle shaft in my 89 Mustang GT. How do I find out if its a 8.8" or 7.5" housing and if its a 31 or 28 spline?

Jun 2, 2006 | 08:40 PM

randy78045

6th Gear Member

Joined: Jan 2006

Posts: 6,054

From: Laredo, TEXAS

RE: Rear axle replacement

If its stock it's 8.8, 28 spline...

Jun 3, 2006 | 01:12 PM

mustangman02232

6th Gear Member

Joined: Dec 2004

Posts: 15,865

From: Ludlow, Mass

RE: Rear axle replacement

all GTs past 87(?) have an 8.8, stock is 28 spline but it could be a 31 if one of the previous owners upgraded it

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