Our 5,400-pound, 400hp 4x4 has chewed through no less than four 4L60E four-speed automatic transmissions in less than a decade. The failures have included: a smoked torque converter clutch, which ...

Attention, Project T-top Coupe followers: We finally executed the drivetrain upgrade that we’ve been highlighting—well, hyping—since we embarked on the 1986 Ford Mustang LX’s resurrection back in ...

With their debut in the 1990s, GM's 4L60E and 4L80E transmissions reveal some of their differences –- and similarities –- right in their names. The "4" and "L" respectively refer to the number of ...

The big boss needs a new transmission for his ’61 Bel Air, and his underlings (us) must deliver. And by big, we mean really big. TEN’s Executive Vice President of Aftermarket Automotive, Doug Evans, ...

If it's mechanical, you can bet the OEs have it digitally controlled. This obsession with control started with electronic fuel injection in the late 1980s and eventually expanded into suspension and ...