I’ve never really thought of this before tbh… but I was thinking of changing my gear oil as it hasn’t been changed in a year & a half when the new 4.56 gears went in. I got home last nite after a 120mile tow trip… pull about 70mph entire way.. got home & put hand on stock diff cover…. Damn it was A Lot Hotter than I expected. I see b&m, g2 ect make cooling diff covers.. I did quick research, but is one preferred over the other? I have a 14 bolt rear end heavy half, so “assume” 10.5 ring gear..