2010 Challenger 6M- Brilliant Black, 426 stroker, Hellcat rear cradle, ZF 3.90 diff, DSS 1 piece
Just drained the fluid in the rear differential on my 10 Challenger R/T... It was disgusting. Not a hint of golden, pitch black and full of clutch material. I do drive hard, but I didn't expect the fluid to come out looking like it did. I'll be installing RP Max Gear 75-90 in the morning. just a word of caution for those of you with the limited slip differential following the factory recommended change intervals. pictures to follow.