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Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here.

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  #1  
Old September 6th, 2019, 12:55 PM
JimT JimT is offline
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Default Transmission Fluid

I have a 1966 GMC 1000 with a 2 speed Powerglide transmission that is low on fluid, looking for a recommendation on what type of transmission fluid to add. Thanks is advance for your help!

JimT
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Old May 17th, 2020, 01:59 AM
binto binto is offline
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Default Re: Transmission Fluid

Well, there are a couple of recommendations

Hypoid lube in the rear end. NON-hypoid lube in the trans if manual (the extreme pressure additives in hypoid lube will eventually attack brass/bronze parts like the synchro cones).

If automatic, Dexron or any other ATF except type F. That's what i use for all my tow trucks. If automatic, Dextron ATF. Otherwise on manual trans, regular gear oil (non-Hypoid).
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