Dirt-Tech's Pro 2 Off-Road Axle Housing
This Dirt-Tech Pro 2 Axle Housing has a 3/8" thick 4130 Face Plate, which is drilled and tapped for 3/8-16 studs.
It has a 3/16" thick 4130 Shell, and a 4" x .250 wall. The Axle Tubes on our Pro 2 Axle Housing are made of 4130.