This Chevy TR4050 4×4 5 speed kit allows you to bolt your v8 engine including the Chevy LS, small block, and big block to a Tremec TR-4050 transmission. Designed to use either an internal or external slave cylinder. Made in the USA. A clutch fork for external slave is $150 more. The external slave is the same found on a 1995 Dodge Ram 2500 diesel with an NV4500.