SHOP BY CATEGORY
Everything you need for high performance transmission builds — from complete units to individual components
LENCO RACING
CS1, CS2, CS3, CS4, ST-1200, LencoLite and Boat series — the gold standard in drag racing planetary transmissions since 1970
LIBERTY GEARS
American-made precision gearboxes for drag racing and high performance street builds
ROSSLER TRANS
High performance automatic transmissions with billet internals and custom valve bodies
SHIFTERS & CONTROLS
Race-proven shifters and control systems for Lenco and Liberty planetary units
BELL HOUSINGS
SFI-certified bell housings and adapter plates for all major engine/trans combinations
TORQUE CONVERTERS
Custom stall torque converters matched to your engine build and racing class
COMPONENTS & PARTS
Clutch packs, couplers, gear reducers, and all replacement components in stock
OTHER BRANDS
Top-tier transmissions from other leading performance brands including Tremec, Jerico, TCI, and specialty builders
OUR MAJOR BRANDS
ProShiftLab specializes in the world's most trusted high-performance transmission brands
BUILT FOR YOUR RACE
Whether you run the quarter mile or pull the chain, ProShiftLab has the right transmission for your build
Drag Racing
From bracket racing to Top Fuel, we have the transmission for your class and horsepower level.
Street Performance
High performance street builds that demand durability, smooth shifts, and reliable power transfer.
Off-Road & 4x4
Rugged transmissions engineered to handle the torque demands of off-road and trail applications.
Marine Racing
Lenco Boat series transmissions purpose-built for high performance offshore and drag boat racing.
Truck & Tractor Pull
Liberty Gears and Rossler units capable of withstanding extreme torque loads in pulling competition.
Pro Motorsport
Full support for professional racing teams from build consultation to track-side technical assistance.
NEED HELP CHOOSING?
Our team of racing transmission specialists will help you spec the right unit for your power level, class, and budget.
WHAT RACERS SAY
Trusted by drag racers, builders, and enthusiasts nationwide
"Ordered a Lenco CS2 and had it on my doorstep in 3 days. ProShiftLab's tech support walked me through the entire install. Absolute pros."
Tony Marchetti
Pro Street Racer – 1969 Camaro
"Liberty Gears unit arrived perfectly packaged. These guys clearly know their stuff — I called with questions and got a real technician on the line immediately."
Brad Kowalski
NHRA Bracket Racer
"Best source for Rossler parts I've found. Huge inventory, great prices, and same-day shipping. My go-to for everything transmission-related."
Dale Simmons
Pro Mod Builder
"ProShiftLab helped me spec the right torque converter for my 2,000hp build. They know what works and what doesn't. Couldn't be happier."
Mike Vantrees
Top Sportsman Competitor
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