The GMT800 generation of General Motors’ fullsize trucks and SUVs is one of the most popular among truck enthusiasts—and for good reason. They’re thoroughly modern vehicles, but still relatively easy ...

Keeping tabs on your transmission’s vitals has always been tough, because unlike your engine, most trucks do not have a transmission fluid temp gauge, or even an idiot light. And if you are like us ...

If you're old enough to remember when a street rodder wanting an automatic transmission had to choose between a slant pan Hydramatic or a Powerglide you probably recall how exciting it was when the ...

If you've ever towed a trailer up a grade in July or sat through Los Angeles traffic in a 20-year-old SUV, your transmission has probably begged for mercy. Heat is the enemy of transmissions. Too much ...