Garmon's Diesel Performance is a full service diesel performance shop located in Griffin, GA just south of Atlanta. Garmon's Diesel Performance offers just about anything you could need for your diesel from simple repair work all the way up to race-ready engines and transmissions. Whether you want to refresh your tired old diesel truck, or make your truck a force to be reckoned with on the drag strip, Garmon's Diesel Performance has what you need. Jeff Garmon has been wrenching on diesels longer than most folks in the industry. He has been competing since diesel pickups started having organized competition, winning and setting records all the while. In 2008 Jeff won the TS Performance Outlaw Challenge and the NADM Unlimited Street championship. Jeff's know-how and tuning can be found in several of the fastest and quickest trucks in the nation.
About Us
Needless to say Jeff bent over backward to help us, so I just wanted to say thank you to Jeff. He's one of a kind!......Mike D.
Customer Feedback
His new tranny / tq. convertor setup along with the shipping crates will allow anyone in the U.S. to experience a Garmon built tranny for themselve's... David
Jeff is a great man/friend..He as helped me out so many times. I've learned so much from him and I'm still learning....Sticky