Over the years, we thought we knew a few tricks about how to set up a typical Eaton 12-bolt, clutch-style limited slip, better known as a Posi. But we've learned a slick trick from Tom at Tom's ...

When it comes to gears and rears, many concentrate on the high-end, bulletproof differential and axles-and for good reason. When it comes to the transfer of horsepower and torque, a vehicle's rear ...

To me, there were always two driveline components whose internal workings I've steered clear of-differentials and transmissions, their rebuilding, setup, and assembly have always been something of a ...

If you ever need to track someone’s 4x4 off-road, it’s easy if the rear diff under said rig is a stock GM “Corporate” 14-bolt: just look for the drag mark plowed down the center of the trail or the ...