The GMT800 HD trucks were a massive step forward for GM's truck division. The available engines included the LS-based 6.0L, the big block 8.1L, and the line-topping 6.6L LB7, LLY, or LBZ Duramax diesel. Whether gas or diesel, we have the parts to take your truck to the next level on the street, worksite, or drag strip.

Choose a performance torque converter from B&M or Hays. We offer a variety RPM stall speeds to fit your needs. B&M and Hays torque converters have you covered for your street, track, or off-road adventures.