[Kracka]

New drivetrain fluids inbound! I figured at 20k miles/2 years it's getting about due.

Transmission: Redline D4 ATF (gallon)
Differential: ACDelco LS 75W-90 (3 quarts)

I was considering going with Mobil 1 LS 75W-90 for the diff, but its a mixed bag of info whether or not it has the correct amount of LSD additive in it; I figured going with OEM would be the safe play there.

For the transmission, Tremec recommends a Dexron III ATF fluid, but the dealer parts counter tried to sell me something called ACDelco Manual Transmission Fluid. I decided to just skip the confusion and order tried & trued Redline since I've been using their transmission fluids for nearly 15 years.