Rear end interchange
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Freshman User
Joined: Jun 2006
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From: Missoula MT
Rear end interchange
I have an '86 Aerostar with a noisy rear end. I've had it checked by both my mechanic, and a transmission shop, and they both say it's the differential, not the wheel bearings. The quote to rebuild is $800, so I'm looking for a replacement. My question is: What years will interchange with my 2.3, 5-speed '86 Aerostar?
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Joined: Sep 2003
Posts: 7,017
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From: SoCal
All Aerostars used the same unique rear axle; there were no other vehicles that used it. The only difference is between the 7.5" vs the 8.8" versions. Since you have a small 4 cylinder engine, you can use either; the 8.8" was installed with the 4.0 liter v6. But you might want to find a 7.5" version, just to save some weight.
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