I have a locker and diff cover waiting to go in. What do these hold for fluid?(pan is +1qt capacity) What kind of fluid are you guys running? Royal purple, amsoil, mobile 1?
Valvoline 75-90 Synthetic with BG additive and ATS aluminum cast cover increased it to like 7+ qts. So it almost doubled the capacity with that cover has to make a temp reduction in hot hard pulls. Valvoline warrants it for the axle parts on the Duramax and saved alot on price compared to GM golden magic potion juice.