In the automotive world, especially when it comes to off-road trucks and SUVs, differentials come up all the time. Is your differential locking, limited slip or open? Do you have a transfer case? One ...

If you’ve ever played with a Hot Wheels car, and of course you have, you know the toy does a great job of going in a straight line but doesn’t turn very well. That’s because it doesn’t have a ...

Have you ever tried to accelerate quickly to merge onto a high-speed highway in bad weather and been stuck spinning one wheel? Open differentials are important when making turns as they allow for the ...

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 ...

Mark McNabb was a contributor at TopSpeed from 2013 to 2018. Growing up, Mark always had a mind for tinkering on random items throughout his home and dad’s garage, including a 1953 Ford Mainline and ...