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 ...

What if the hot rod is not a racecar or mega-horse street flier, but rather a cruiser running in the mid-400-horse range that will never see the track? Building a rear end capable of withstanding 800 ...

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 ...

When it comes to fixing your differential, there’s bad news and good news. The bad news is that differential replacements are expensive, often ranging from $2,500 to $6,000. The good news is that both ...

We earn commissions from purchases you make using links in our articles. Learn more. Most of the time, it’s unnecessary to give your vehicle’s differential cover a second thought; the technology has ...

Front differential failures are extremely rare, but when they do start to fail, you may hear grinding, feel vibrations and have trouble steering. If you notice any of these symptoms, it’s best to have ...