Fluid Questions

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Jul 14, 2011 | 03:27 PM

1andonlywhitie

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From: Allen, Texas

Fluid Questions

Alright guys, need some advice on what fluids to run in:

1: The original straight-cut 4 speed.

2: The rear diff.

I'm doing a fluid change, already done engine oil, new brakes, about to do radiator flush and then I'll jump onto the trans and rear diff.

Thanks guys!

Jul 14, 2011 | 03:48 PM

Doc

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From: East KY

I used 90 weight gear oil. I'm sure somebody will jump on here and give you better advice, but I'm pretty sure the shop manual mentions 90 weight oil.

Jul 14, 2011 | 06:02 PM

1andonlywhitie

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From: Allen, Texas

Quote:

Originally Posted by Mountaindoc

I used 90 weight gear oil. I'm sure somebody will jump on here and give you better advice, but I'm pretty sure the shop manual mentions 90 weight oil.

Alright, sounds good. Any idea how much I need of each? I don't have a manual or anything so it's all coming from online but it's hard to research.

Jul 14, 2011 | 06:35 PM

teardropty

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From: Kalamazoo MI

I use 90w with a little bit of Lucas oil stabilizer mixed in. The lucas bonds to the innards and protects the metal. That's my .02. I put the rest of the lucas in the motor.