Jake's Performance LLC Information

We specialize in automatic transmissions for BIG POWER on the street, dragstrip, and offroad. If you have a 800-2000 HP street legal car, drag radial car, or weekend bracket racer and need an automatic transmission give us a call. We make the TH400 live at 1500 HP using an automatic valve body. You may have noticed everybody else wants to use a full manual valve body at that power level. That's because they don't have the knowledge to make the transmission live using the valve body GM designed. Our 4L80E builds are setting the standard for others to follow. Jake's Performance 4L80E transbrake is quickly becoming the most popular item we sell. That's because it blows the competition away on set and release times. Try it, you'll never use a competitors again. We have the capability of building specialty transmissions for unusual combinations. Need a 4L80E behind a Mod Motor Mustang?, call us. Contact us with your transmission needs. All transmissions at Jake's Performance are built with all new friction materials, steel plates, bands, seals, filter, and soft parts at a minimum. Electronic units include new shift solenoids, manifold presure switch, wiring harness, and sensors in most cases. We do multiple upgrades on every unit. GM automatics are our specialty and we know these units inside and out. We know what usually fails and why. We upgrade the known weak points to prevent common failures. A typical transmission rebuild shop doesn't build extra capacity into the transmission. They simple "rebuild" the unit and in many cases what they call a rebuild is replacing only the clutches that are burnt or worn. We replace all the wear items, replace thrust washers with bearings (rollerize), upgrade the hydraulics, clutch materials, clutch capacity, blueprint the clearances, and any unit specific upgrades to make the transmissions live. 90% of what we build is for 500+ HP applications. We also do builds for musclecar restoration where the case gets blasted to bare aluminum to appear new and stock. We have extensive ...