IDing rears

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Jul 7, 2003 | 03:56 PM

stupid4901

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IDing rears

I need to put a 3 series rear in my car and have no idea how to tell it apart from a 2 series. I'm getting it from a junkyard and they will not let me remove each differential cover. Is there anyway to tell what it is otherwise?

Jul 7, 2003 | 04:24 PM

RB83L69

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From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

That's asinine. Find a better junkyard.

Jul 7, 2003 | 06:00 PM

stupid4901

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Does anyone have or know of a good place to get 3 series rears?

Jul 7, 2003 | 09:54 PM

Rustydawg

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From: Edmonton AB Canada

Car: 86 Firebird

Engine: 355 4 bbl

Transmission: TKO 600

Axle/Gears: 3.73 L/S

The Haynes manuals ID rear diffs by the ID number stamped on the axle housing. It tells you axle gear ratio and whether or not it is a posi carrier, 10 bolt or Borg-Warner.