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Fluids?

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Old Sep 14, 2006 | 12:34 PM
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Default Fluids?

It's time for me to put in the fluids...4 speed and differential... what is the BEST oils to use...
The body is going on in a couple of weeks and i want to get them in without crawling under... i don't have access to a lift.

jack

Last edited by 66jack; Sep 14, 2006 at 12:40 PM.
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Old Sep 14, 2006 | 01:20 PM
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Originally Posted by 66jack
It's time for me to put in the fluids...4 speed and differential... what is the BEST oils to use...
The body is going on in a couple of weeks and i want to get them in without crawling under... i don't have access to a lift.

jack
Use GM posi fluid and additive. Put 2 additives in and then 2 or 3 pints of fluid until it runs out the fill hole.
p/n 89021671 Posi fluid
p/n 1052358 Posi additive
For the trans, I use 80/90 gear oil from Flaps.
Some others may chime in about synthetic fluids-I have not used them.
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Old Sep 14, 2006 | 01:26 PM
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Originally Posted by kenEDMUNDS
Use GM posi fluid and additive. Put 2 additives in and then 2 or 3 pints of fluid until it runs out the fill hole.
p/n 89021671 Posi fluid
p/n 1052358 Posi additive
For the trans, I use 80/90 gear oil from Flaps.
Some others may chime in about synthetic fluids-I have not used them.
That's what the trans and diff were designed, developed, and durability-tested with; I've used the same fluids noted in about 40 cars over the years, and have had zero problems.
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Old Sep 14, 2006 | 04:47 PM
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thanks for the info


jack
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Old Sep 14, 2006 | 05:36 PM
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Originally Posted by kenEDMUNDS
......For the trans, I use 80/90 gear oil.......
Some others may chime in about synthetic fluids-I have not used them.
The old Muncie design doesn't like synthitic I understand....... i'd stick with std 80/90 in it for sure.
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