GM 10" 700R4 or 4L60E High Performance (Big John)

GM 700R4 Lock-Up or Non-Lock-Up (Select Type). This 10” High Performance Torque Converter is nicknamed “BIG JOHN” for a reason. You invested in a GM 700R4 and to get the most out of your machine “Big John” is the answer. Please ensure you select the correct stall and lock-up.

We have sold this type of torque converter to customers in all parts of the world.

Our company ensures the highest quality in manufacturing high performance torque converters. We have an annual maintenance plan for you to ensure your High Performance Torque Converter investment will last. Each year following your purchase we send a UPS Pick-Up Kit to return your Torque Converter to our plant and serviced by our high performance team. We replace all worn parts and conduct a 7 point inspection, then return your torque converter. The cost each year is $125.00 Plus Shipping. This service makes this well worth the investment.