Gen 1 Differential Fluid Change

jkroberts21 · Oct 3, 2024

Progressing with changing all the fluids but when I got to the differential, according to the service manual's directions, I attempted to withdraw the fluid with a suction tool, but the fluid seemed way too thick to **** out. I did let the car sit for a few hours after driving it, but the 75w-140 amsoil I bought to replace the fluid was way thinner

There appears to be a drain plug in the bottom of the diff. Can the fluid be drained that way?

Can anyone who's changed the differential fluid in a gen 1 give me some advice on procedure?

Much appreciated in advance

Steve-Indy · Oct 4, 2024

That drain should work.
As you might guess, draining it hot (with care) helps when dealing a differential without a drain. I like to put in a little new fluid, as a rinse, then drain or suction that fluid out before final fill.

steve e · Oct 29, 2024

A bit of advice, before you drain any transmission, differential, transfer case, make sure you loosen the fill plug first, I can't tell you how many cars have been towed into my shop because the owner couldn't loosen the fill plug after he drained it, they can be over tightened and a bear for the home mechanic to get loose.

Gen 1 Differential Fluid Change

jkroberts21

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Steve-Indy

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steve e

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