• TCI Circlematic Front pump drive allows you to run without using a torque converter
• For Powerglide transmissions
• Reduces rotating mass by 15 to 30 lbs compared to torque converter
• Requires special designed valve body
• Adjustable for 1/8” & 1/4” motor plates
• Fits all 1986-up, 1-piece rear main seal design Chevy small-block V8 engines