For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...

The scenario goes something like this. Our LS3 used to rev freely and make power all the way up through 6,800 rpm, but now it struggles to get to 6,000 and power is definitely down. After a thorough ...

Suspension can be everything in the off-road world. Yeah, a strong engine gets you moving, but suspension keeps you in control so you can use that engine power. The use of coilover shocks, their ...

Chrysler is recalling roughly 330,000 Jeep Grand Cherokees because the rear coil springs on some newer models could fall off when someone is driving, increasing the risk of a crash. The recall covers ...

The race (or should we call it war?) to make the loudest, fastest, most capable off-road pickup truck has really come to a head in the past 12 months. Though Ford went largely unchallenged with its ...

The next-gen Toyota Tacoma is out testing these days, and it appears to be taking a page out of the new Toyota Tundra’s book for its rear suspension. These spy photos give us both a good look at the ...

THIS paper describes the characteristics of helical coil springs, particularly the less expensive ones. Comparisons of energy storage in steel springs are made. The author demonstrates the method of ...

If you’re in the market for a full-size pickup that off-roads like a champ, you have plenty of choices in this segment. None, however, can match the F-150 Raptor unless Ram surprises us with the TRX ...