Performance Transmission >
Shift Improver Kit
The B&M Shift Improver Kit 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/Strip.
It's our least expensive and simplest to install kit. All you need are a few dollars and some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit!Stage 1 - Heavy Duty
Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for regular passenger vehicles.Stage 2 - Street/Strip
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.
- 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
- Improves transmission life
- Transmission removal not required
- Buick, Chevrolet, GMC, Olds, Pontiac - '82-'93 TH-700-R4/4L60
Part #: 70239
Click the "check stock" button for availability