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Old 10-28-2014, 11:58 AM   #1
1985GMC
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TH400 Fluid of choice?

1985 GMC K2500 4WD, VIN M
3L80 TH400 automatic

Dextron II is what ALLDATA says to use for fluid. Anyone have success with other type of transmission fluids? I've had success with Lucas Oil products and was debating using their Trans. Fluid.

Suggestions??

Thanks.
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Old 10-28-2014, 05:19 PM   #2
1985GMC
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Re: TH400 Fluid of choice?

Bump
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Old 02-08-2015, 08:47 PM   #3
Shifty One
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Re: TH400 Fluid of choice?

B & M Trick Shift
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Old 02-15-2015, 12:46 AM   #4
gmachinz
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Re: TH400 Fluid of choice?

Mobil 1 ATF in every auto trans I have.
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