B&M 87-91 GM TH400 375 m40 42082R NHRA- and IHRA-approved blanket measures

NHRA- and IHRA-approved blanket measures 12" x 47" and meets SFI 4

thigh and knee panels for ventilation and flexibility

Assortments contain five each of 1/4"-20

Smaller stem for

Pro Series Bolts are rated at 190

B&M 87-91 GM TH400 375 m40 42082R NHRA- and IHRA-approved blanket measuresShift Improver Kit for TH 400 (3L80) Automatic Transmission B&M'specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance and Off Road has been at the vanguard of the growing automotive aftermarket since