BD’s design deflects the oil back onto
the ring gear and into the pinion gear for cooler longer life. Other
differential covers are large and bulky resulting in lubricating oil being
flung off the ring gear causing addition heat and/or wear.

Engineered cover design keeps oil on the gears
Deflects oil back onto the ring gear and into the pinion gear for cooler
longer life
Extra capacity sump located at bottom for gears to pick up oil
Internal and external cooling fins
Stainless steel allen head cap bolts, fill plug
Magnetic drain plug
Gasketless cover has integral re-usable Viton O-Ring
Dodge (2003-up) with AA14-11.5 differential
Chevy (2001-up) with AA14-11.5 differential