The B&M Shift Improver Kit is the easiest way to get the stout performance you've always wanted out of your automatic transmission - and you get two modes of performance to select from: Heavy Duty, or Street and Strip. It's our least expensive and simplest to install kit. All you need is a few dollars and some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit! Just ask the thousands of satisfied customers that have installed one in their transmissions!
- Shift Improver Kit - Buick, Chevrolet, GMC, Oldsmobile, Pontiac - 1968 to 1981 TH350 And M38
- Provides Crisp Shifts On Any Stock Automatic Transmissions
- Elimination Of Soft Sluggish Shifts, Shift Overlap, And Excess Wear On Clutches And Bands Due To Slippage
- Stage 1 - Firm Positive Shifts Without Loss Of Driver Comfort For Improved Performance In All Street Vehicles. Recommended For Regular Passenger Vehicles.
- Stage 2 - Provides Very Positive Shifts For High Performance Street Use Or For Competitive Events. This Model Is For The Enthusiast Who Wants The Hardest, Quickest Possible Shift
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