B&M 20260 Shift Improver Kit - GM TH400 Transmissions

1965-1987 GM TH400, TH375 & TH475 Automatic transmissions

PART# 20260

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Overview

The B&M® Shift Improver kits™ feature two options to recalibrating your 1965-1987 GM TH400, TH375 and TH475 automatic transmissions. First is the HEAVY DUTY set-up, giving you firm positive shifts without loss of driver comfort for improved performance in all street vehicles. This is a great option for performance street driving or towing. The second is our STREET/STRIP set-up. Be warned, this will deliver firm positive shifts you will feel, along with easily chirping the tires when shifting somewhat aggressively. This setting is recommend for high performance street/strip use, or for competitive events when you want the hardest, quickest shifts possible from a shift improver kit.

Features:

  • Perfect for Towing or Street/Strip Use
  • Eliminates Soft and Sluggish Shift
  • Recalibrates Stock Transmissions
  • Over 65 Years of B&M Quality
  • Eliminates Shift Overlap
  • Provides Crisp Shifts

Product Attributes

BrandB&M
Emission Code5
Product TypeAutomatic Transmission Shift Kits
UPC19695202606
California Proposition 65 Chemical NameCadmium and cadmium compounds
California Proposition 65 RequiredYes
Part Number20260

Emissions

5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

For 1965 to 1987 GM Turbo-Hydramatic 400, Turbo-Hydramatic 375 and 475 automatic transmissions

Applications

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.