Even a transmission can look good, all thanks to these PPE Heavy Duty PTO Side Place Covers. Made from cast aluminum, the covers add strength to center of the transmission case eliminating trans oil seepage at the mating surface. Cooling fins double the surface area (60.74 sq. in.) when compared to stock (30.62 sq. in.), therein increasing heat dissipation from the transmission oil. Kits come with the covers, mounting hardware and gaskets.