Dodge trucks pulling heavy loads or boosted to 500–600HP are at high risk for overdrive burnup due to the stock transmission’s insufficient clutch capacity and fragile OE clutches. Even small amounts of heat and extra torque will push the thin (.034"), single-sided clutches over the edge, distorting the clutch pack. Any distortion of the clutch pack takes the clearance out of spec and makes overdrive clutch burnup inevitable. Keep hardworking trucks on the road with the Sonnax overdrive clutch housing kit. The unique billet aluminum housing increases OD apply area by 16% and holds a physically taller clutch pack. The 2X thicker steels increase clutch pack steel mass by 28% for maximum heat dissipation. The double sided Borg Warner clutch frictions are optimized for the 68RFE OD application and custom-made for the Sonnax kit. This guarantees an unrivaled combination of squawk resistance and maximum clutch capacity for any truck. This groundbreaking kit is the only top-of-the-line upgrade that eliminates clutch problems without relying on valve body/pump modifications or adding the expense of extra components.

  • 20% more clutch capacity
  • Firmer, more controlled shifts
  • Increased steel mass by 28% for maximum heat dissipation
  • Custom BorgWarner clutches
  • Bolt-on anchor plate

Dodge trucks pulling heavy loads or boosted to 500–600HP are at high risk for overdrive burnup due to the stock transmission’s insufficient clutch capacity and fragile OE clutches. Even small amounts of heat and extra torque will push the thin (.034"), single-sided clutches over the edge, distorting the clutch pack. Any distortion of the clutch pack takes the clearance out of spec and makes overdrive clutch burnup inevitable. Keep hardworking trucks on the road with the Sonnax overdrive clutch housing kit. The unique billet aluminum housing increases OD apply area by 16% and holds a physically taller clutch pack. The 2X thicker steels increase clutch pack steel mass by 28% for maximum heat dissipation. The double sided Borg Warner clutch frictions are optimized for the 68RFE OD application and custom-made for the Sonnax kit. This guarantees an unrivaled combination of squawk resistance and maximum clutch capacity for any truck. This groundbreaking kit is the only top-of-the-line upgrade that eliminates clutch problems without relying on valve body/pump modifications or adding the expense of extra components.

  • 20% more clutch capacity
  • Firmer, more controlled shifts
  • Increased steel mass by 28% for maximum heat dissipation
  • Custom BorgWarner clutches
  • Bolt-on anchor plate

  • 20% more clutch capacity
  • Firmer, more controlled shifts
  • Increased steel mass by 28% for maximum heat dissipation
  • Custom BorgWarner clutches for maximum capacity
  • Bolt-on anchor plate

1947 - 2021

"My father started this business back in 1947. He worked on anything that would fit through the front door of our shop, and some in the driveway that couldn't. Back then, we did everything from overhauling a carburetor on an 8N Ford tractor to rebuilding an injection pump on a GM diesel. When my brother and I bought the business from Dad in 1978, we started specializing in automatic transmissions, torque converters, electronic fuel injection, and chassis dynomometer testing.

We have now been in the automotive industry for over 70 years, focusing on diesel trucks and torque converters for the past 40. Here we value quality over quantity, which is why we use multiple specialty tools and in-house equipment that allow us to manufacture and test our products well beyond what others can do. Because of our expertise in these areas, along with our top-of-the-line equipment and tools, we have become the top producer of quality torque converters and components for Dodge, GM, and Ford trucks.

Our workmanship, attention to detail, extensive equipment knowledge and work ethic has assured our customers for over 70 years that they are receiving the highest caliber of products and service there is."

Dave Goerend

1947 - 2021

"My father started this business back in 1947. He worked on anything that would fit through the front door of our shop, and some in the driveway that couldn't. Back then, we did everything from overhauling a carburetor on an 8N Ford tractor to rebuilding an injection pump on a GM diesel. When my brother and I bought the business from Dad in 1978, we started specializing in automatic transmissions, torque converters, electronic fuel injection, and chassis dynomometer testing.

We have now been in the automotive industry for over 70 years, focusing on diesel trucks and torque converters for the past 40. Here we value quality over quantity, which is why we use multiple specialty tools and in-house equipment that allow us to manufacture and test our products well beyond what others can do. Because of our expertise in these areas, along with our top-of-the-line equipment and tools, we have become the top producer of quality torque converters and components for Dodge, GM, and Ford trucks.

Our workmanship, attention to detail, extensive equipment knowledge and work ethic has assured our customers for over 70 years that they are receiving the highest caliber of products and service there is."

Dave Goerend

1947 - 2021

"My father started this business back in 1947. He worked on anything that would fit through the front door of our shop, and some in the driveway that couldn't. Back then, we did everything from overhauling a carburetor on an 8N Ford tractor to rebuilding an injection pump on a GM diesel. When my brother and I bought the business from Dad in 1978, we started specializing in automatic transmissions, torque converters, electronic fuel injection, and chassis dynomometer testing.

We have now been in the automotive industry for over 70 years, focusing on diesel trucks and torque converters for the past 40. Here we value quality over quantity, which is why we use multiple specialty tools and in-house equipment that allow us to manufacture and test our products well beyond what others can do. Because of our expertise in these areas, along with our top-of-the-line equipment and tools, we have become the top producer of quality torque converters and components for Dodge, GM, and Ford trucks.

Our workmanship, attention to detail, extensive equipment knowledge and work ethic has assured our customers for over 70 years that they are receiving the highest caliber of products and service there is."

Dave Goerend