V8 Flexplate Adapter Kit for TH350 TH400 700R4 Transmission for Chevrolet Gen III LS1 V8 Replace for: For GM ls Gen II to early GM 3/4 SPEED automatic Work with : 10.75" &11.066" bolt -pattern; for Chevrolet Gen III V8 Compatible with: For LS V8 TH350 700R4 200-4R Packaged Included: Flex Plate, torque converter adapter sleeve, flex plate bolts, and torque converter bolts Note: Please make sure the car's model if fit your car or not before you order