• 8" 4WD Differential Housing Building your own 3rd member? Our 3rd member housings include caps, cap bolts, adjusting wheels, lock tabs and lock tab bolts. Housings are all new with no core return to worry about! Contact our Tech Support Line for...
    $488.42
  • 30-Spline 4340 Chromoly Super Set (Longfield) With larger tires and more horsepower being used on the trails these days, upgrades to your axle are more critical than ever. In a Toyota, one of the common failures are the stock 27-spline birfields and...
    $911.42
  • Rear Rock Assault Axle Housing Kit (IFS Width) The axle tubes are now made from 5/16" thick, high strength DOM tubing and engage 5/8" farther into the center section. On top of that, there is a 360° gusset welded around the tubes on the inside of...
    $824.48 - $1,053.33
    choose option
  • Long Travel Driveline (Matsuba U Joint) We are pleased to announce the release of a new and improved heavy duty drive line. The heavy duty driveline splines are 42% larger than our old design and the spline section is nylon-coated to prolong many years...
    $568.74
  • Unit Hub (Dana 60 / 9" Housing) These unit hubs are not just another aftermarket 1-ton unit hub that has been machined down and modified from an 8 lug to a 6 lug application. This hub has been designed for a specific application, so these 1-ton unit...
    $547.00
  • Rock Assault Rear Axle Housing (W/ Options) The axle tubes are now made from 5/16" thick, high strength DOM tubing and engage 5/8" farther into the center section. On top of that, there is a 360° gusset welded around the tubes on the inside of the...
    $824.48 - $1,053.33
    choose option