B&M 70239 Shift Improver Kit, 82-93 TH700R4

The B&M Shift Improver Kit the easiest way to get the performance you've always wanted out of your automatic transmission, two modes to select from: Heavy Duty, or Street/Strip. It's our least expensive and simplest to install kit. Provides Crisp Shifts. On Any Stock Automatic Transmission. Eliminates Soft and Sluggish Shift. Eliminates Shift Overlap.