87 10 bolt disc brake axle vs 91 drum brake axle shaft

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12-06-2004, 11:21 PM

91NiteRida'

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87 10 bolt disc brake axle vs 91 drum brake axle shaft

does anyone know if the axle shafts are interchangable between a 87 10 bolt disc brake axle compared 91 drum brake axle shaft?

Also what are the years that use the same parts for a rear axle?82-87 and 88-92?
All and any info will be greatly appreciated.

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12-08-2004, 12:35 AM

Justins86bird

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Car: 86 LG4 & 92 TBI Firebird

Engine: The Mighty 305!

Transmission: 700R4

Axle/Gears: 3.42

Re: 87 10 bolt disc brake axle vs 91 drum brake axle shaft

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Originally posted by 91NiteRida'
does anyone know if the axle shafts are interchangable between a 87 10 bolt disc brake axle compared 91 drum brake axle shaft?

Also what are the years that use the same parts for a rear axle?82-87 and 88-92?
All and any info will be greatly appreciated.

Nope. In mid 89, the rears changed from 26 spline to 28 spline.

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12-08-2004, 07:46 AM

zupmanZ28

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Not only are the splines different, but the axle flange on the drum brake is slightly larger than the disc brake axle. Not a big deal unless your planning on using the older style rear disc setup, in which case the rotor won't fit over the axle.

I found this out the hard way last week