Watch as we take on the rebuild of a Caterpillar D4 final drive pinion. From disassembly to inspection and reassembly, this detailed video walks you through the entire process. Ideal for heavy ...

Last month we honed the cylinder bores on our International 7.3L IDI diesel engine. This process took the glaze off the walls and left a good surface for our new piston rings to contact. This time we ...