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30% Off Online Orders of Select Parts and Accessories. Enter Promo Code 30PEP in Cart

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30% Off Online Orders of Select Parts and Accessories
Receive 30% Off Your Online Purchase. Use promotional code PEP30 at checkout to receive discount. Not valid in combination with any other discounts or promotions. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Excludes the following categories: Tires, Wheels, Batteries, Powerstop Brake Kits, Oil, Antifreeze, Refrigerant, Truck Boxes, Vent Visors, Bug Shields and BRANDS: Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Thule, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, JVC, MSD and BBK Performance. Valid online until 2:59 am EST on 9/29/16. Online orders scheduled for in-store pick up must be completed by closing on 9/28/16 for discount to apply.

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  • Part #: 20260|
  • SKU: 9982530

3 days after 6 p.m.


    • Shift Improver Kit - Buick, Chevrolet, GMC, Oldsmobile, Pontiac - 1965 to 1987 TH400, 375 and M40
    • Provides Crisp Shifts On Any Stock Automatic Transmissions
Retail
$40.99
PayPal available for online purchases. Major credit cards accepted online and in store. Pay online, in-store or take advantage of our Pep Boys credit card. Learn more and see additional details in cart.

B&M Shift Improver Kit

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 - 1965 to 1987 TH400, 375 and M40
  • 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
  • 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
Shift Improver Kit For 65-87 TH400 Transmission

9982530