The most popular transmission modifications for cars equipped with automatics are valve body reprogramming kits and torque converters. Valve body kits are generally called upon to increase shift ...

Viewer-submitted questions for The Car Doctor: Q: I have a 2017 Honda Ridgeline (66k miles) without four-wheel drive. I know there is an issue with the transmission that causes the truck to vibrate at ...

Torqueflite automatic transmission (727, 904 or the overdrive A500 or A518 versions) that could use some help? Come on in for more about the new "Modular Series" transmission kits for them from SMR ...

For straight line guys, spending hundreds of dollars on something that doesn't give you any extra horsepower doesn't exactly seem like a good deal. Even a federal bean counter could figure that one ...