Quote:
Originally Posted by Gregski
Thank you, but what do you mean "don't use gear oil in it" than what should I use and why?
|
The aluminum case A833 from the 80's used Dexron III... Gear oil is too heavy. The rumor is they changed something and you'll burn out the countershaft needles. Best case the heavy oil makes it shift strangely and use more fuel.
You can't use Dexron VI in them according to GM.
The GM 88861800 fluid is cheaper than the Mobil ATF "Dexron III compatible" fluid that lists compatibility with GM 88861800 on the back label.
Bulletin 04-07-30-037E: Release of DEXRON-VI Automatic Transmission Fluid
"Any vehicle that previously required DEXRONŽ-III for a manual transmission or transfer case should now use P/N 88861800. This fluid is labeled Manual Transmission and Transfer Case Fluid."
You can't use Dexron VI in most power steering applications where you could get away with Dexron III either... OTOH There's a TSB for my Impala and several other mid size GM cars from the aughts that says to replace the power steering fluid with Dexron VI... Roll with the changes and try to keep up.
__________________
1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8
RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.