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RACING APPLICATIONS

Built For The Challenge.
Engineered To Perform.

From the drag strip to the pulling track and the open highway, Jimmy’s Custom Speed Shop delivers transmission solutions built for power, precision, and reliability.

With over 30 years of experience, we specialize in high-performance transmissions, competition-ready setups, and dependable drivetrain solutions designed to handle demanding conditions.

Whether you’re chasing faster times, pulling maximum loads, or keeping your truck moving mile after mile, we bring the expertise and craftsmanship to get the job done right.

Built for Every Type of Competition

Explore the applications where Jimmy’s Custom Speed Shop delivers proven performance, power, and reliability. From quarter-mile racing and uphill competition to loaded hauling and sled pulling, our transmission solutions are built to handle demanding conditions and help you perform at your best.

Semi-Truck Race Transmissions with Blue Housing on a Workshop Table

Custom Race Transmissions

Shift. Race. Win.
Slipper Clutch Rebuilding for High-Performance Semi-Truck Racing Transmissions

Slipper Clutch Rebuilding

Restore. Rebuild. Perform.
Over-the-Road Semi-Truck Transmission for Smoother Shifting and Long Hauls

Heavy Duty Over-the-Road

Power For The Long Haul.
Red Semi-Truck for Quarter Mile Racing at Jimmy's Custom Speed Shop

Quarter Mile Racing

Launch. Shift. Win.
Uphill Semi-truck Racing Transmissions

Uphill Racing

Power up. Conquer the hill.
Loaded and Bobtail Racing Pulling a Heavy Trailer During a Truck Racing Competition

Loaded Competition

Maximum load. Maximum performance.
Semi-truck Sled-Pulling at a Nighttime Truck Racing Event

Sled Pulling

Pure Power. Relentless Control.
Eaton Fuller 13-Speed and 18-Speed Expertise

Eaton Fuller Expertise

Expertise In Every Gear.

Tell Jimmy what you're building.

Racing, hauling, or somewhere in between — send the details and get a build recommendation straight from the shop.
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