B&M GM TH350 Transmission Upgrade Shift Improver Kit Turbo 350

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  • Regular price $49.99

The B&M shift improver kit is the easiest way to get more performance out of your transmission. It includes two modes to select from: Heavy Duty or Street Strip. Kit includes includes instructions and is easy to install. This heavy duty kit includes gaskets, seals, drill bit and fluid separators.

Features and benefits:

  • Eliminates Shift Overlap
  • Eliminates Soft and Sluggish Shifting
  • Provides Crisp Shifts


  • 68-81 GM TH350 & M38