Description

1987-1989 GMC R3500

a smaller and super lightweight shell make it the perfect fit for the youth market

1971-1977 GMC Sprint

Wastegate open pressure setting for controlling boost spikes and faster spool

34 in Length

B&M 87-91 GM TH400 375 m40 R010003 1987-1989 GMC R3500Shift 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

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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B&M 87-91 GM TH400 375 m40 R010003 1987-1989 GMC R3500

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