A true Jake brake actuates the valves in the head to retard the engine. An exhaust brake goes in the exhaust system and builds back pressure to slow the truck.
With a torque converter lock control, you can use a brake on an auto. It will have to be an exhaust brake, though. Jake brakes are not made for PSD's.
With a torque converter lock control, you can use a brake on an auto. It will have to be an exhaust brake, though. Jake brakes are not made for PSD's.