The ProRock 60 housing from Dynatrac is designed for maximum ground clearance when used as a solid axle; however, we wanted extreme clearance along the top of the casting to clear the engine oil pan. This was achieved by taking an old housing and chopping away at it until it fit nicely beside the engine. Dynatrac took this mockup and machined a new axlehousing to match the chiseled one to fit in the F-150.