Performance Automatic Street Smart Transmission Systems PASS53134

The Performance Automatic Street Smart System PASS53134 is a remanufactured 4-speed automatic built around a Big Block Ford FE bellhousing pattern, recommended for applications at or under 550 horsepower. It ships with a matched torque converter rated for a 2,200 to 2,400-RPM flash stall and a hardened input shaft, running through 35 splines at a 2.40 first-gear step.

What the internal upgrades cover

Inside, this transmission uses heavy-duty clutches, an extra-wide overdrive band, a diode sprag, and a heavy-duty 3-4 clutch pack, controlled through a dedicated shift kit and a throttle pressure cable rather than a stock valve body. A deep steel pan with a natural finish adds fluid capacity to support that heavier-duty build, which suits sustained hard use better than a stock pan, and the 35-spline input shaft is built to carry that extra load without twisting.

A Big Block FE application, specifically

Because this case is built on the FE bellhousing pattern, it suits Ford's Big Block FE engines; confirm your specific bellhousing and application with us before ordering if you are unsure which engine family this matches. A flexplate and transmission cooler are not included with this system, so plan on sourcing both to finish the installation alongside the hardened input shaft already built in.

What warranty does it carry? A limited lifetime warranty applies, longer coverage than the 1-year terms common elsewhere in this lineup.