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Drivetrain› Automatic Transmissions and Components

B&M

TRANSPAK TH 400 65-87

$187.95 $172.95 Save $15.00

SKU: B00M 20228

In Stock
In Stock
Ships by Oct 7
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The B&M Transpak enhances transmission performance and life by providing firmer shifts and optimum performance. It recalibrates GM TH400 automatic transmissions and offers full manual control, allowing downshifting at any speed and holding first gear. This is beneficial for modified engines, towing, or driving downhill.
Show original supplier description

Part #: 20228

The B&M (R) Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). B&M (R) Transpak (TM) kit for 1965-1987 GM TH400/375 automatic transmissions. Most stock automatic transmissions won't downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you're in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you've got a modified engine, and you want additional RPMs, or you're towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty is for street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort and offers normal automatic operation when in Drive. Stage 2 is for Hi-Performance street use. Essentially the same as Heavy Duty mode except shifts are much quicker. Retains full automatic features and standard shift points with selector in Drive.

Features:

  • Recalibrate's GM TH400 Automatic Transmissions
  • Full Manual Control on Most Transmissions
  • Over 65 Years of B&M Quality
  • Improves Transmission Life
  • Optimum Performance
  • Firmer Shifts

Automatic Transmission Shift Kit - Transpak - TH400 / TH375 / M40 1965-87 - Kit

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandB&M
Part NumberB00M 20228

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