About us

Here at J&S Transit, LLC & Diesel Performance, we specialize in a variety of different services to cater to your Diesel Truck Repair, Performance and Stepdeck Trucking needs. J&S Transit, LLC & Diesel Performance provides professional and quality Diesel Service & Repair. We have an excellent reputation as a diesel truck repair and service shop whether you're just looking for routine maintenance, or a full blown race engine, we can meet all of your diesel needs. Our professionals install quality parts to get the most performance out of your diesel truck. Specializing in custom diesel modifications for fuel economy and/or performance; we guarantee reliable services and upgrades. No job is too complicated. Contact us today to speak to a local professional to schedule an appointment! We do general diesel repair on all makes and models of diesel motors class 2 through class 8 Trucks. Ford PowerStroke, Dodge Cummins, Chevy Duramax, Also Detroit, Cummins, Mercedes, Volvo, Paccar, and Caterpillar! We specialize in Ford 7.3, 6.0, 6.4, and 6.7 PowerStroke Repair and Performance. Offering: Tuning, EGR upgrade, removal, or delete, Air Intake, Exhaust systems and a variety of other services! If you're building a tow rig, daily driver, pulling truck, or race truck, J&S Transit, LLC & Diesel Performance is your one stop shop for all of your performance parts and accessories. Serving the La Crosse, Tomah, Viroqua, Sparta, and Wesby WI Area. Give us a call with your needs or to schedule an appointment today!! Are you looking to ship something that can’t be handled by a standard flatbed? No problem — we’ve built our company on tough jobs like these. We haul Stepdeck freight across the lower 48 except CA to get your freight where you need, when you need it!