There is no denying that the new Allison 10L1000 10-speed transmission is a remarkable advancement in truck transmissions. With seamless shifts and a solid lockup function, this new platform is designed around the refinement of the previous generations of units.

When used within the boundaries of the vehicle’s intended design and power levels, this unit has proven to be remarkably reliable. Unfortunately, like many truck transmissions, when pushed beyond the factory’s intended power levels, truck owners are usually plagued with ugly consequences. Some of these issues involve excessive turbine slip, premature torque converter clutch failure, and excessive heat.

Suncoast Performance has developed a new billet torque converter for the Allison 10L1000 that addresses these issues. Suncoast starts by addressing the unwanted turbine slip issues with a redesigned CNC-machined billet stator. This stator is redesigned to improve efficiency and reduce turbine slip. This reduction in turbine slip reduces temperatures when towing and hauling more demanding loads.

The next issue Suncoast addressed is the torque converter friction material. They not only increased the surface area of the torque converter clutch — therefore spreading the load over a larger surface area — but the friction material coefficient is dramatically improved. This reduces the lockup time, helping resolve temperature issues. The stator is also complimented with new Torrington thrust bearings as well.

Suncoast also improves the impeller and turbine hubs by making them with 4140-steel for maximum strength, thereby eliminating any chance of deflection.

The new Suncoast Allison 10L1000 torque converter also includes a new billet apply piston that not only increases clamping force, but also corrects the deflection during application that can occur. This new billet apply-piston is complimented with a new billet cover.

This new Allison 10L1000 torque converter from Suncoast Performance is designed to stand up to whatever you decide to throw at it.