In garages, on trails, and around campfires, debate will always rage over what single modification is most effective in creating a capable 4x4. Is there one magic mod that can dramatically improve ...

If you're looking to make upgrades and repairs to your old tired axles or to rebuild junkyard iron, or you need complete replacement assemblies, then you just got lucky! We've gathered a few new ...

The rearend is often the last part of the drivetrain to be considered when building a car, and it usually receives attention only after something breaks. With good high-performance rearends available ...

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 ...

This 650-horsepower engine swap is getting bigger and hairier by the second. I officially have a major transmission upgrade on the way, which means the only stock component left in my 1969 Dodge ...

When Chevrolet introduced C-clip axle retention in 10-bolt (1964) and 12-bolt (1965) Salisbury axles, it didn't account for speed-crazed acceleration junkies. So when some nutcake (that'd be you and ...

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 ...