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Transpak Automatic Transmission Recalibration Kit - B&M - 20228
Transpak Automatic Transmission Recalibration Kit - B&M - 20228
Transpak Automatic Transmission Recalibration Kit - B&M - 20228
Transpak Automatic Transmission Recalibration Kit - B&M - 20228
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Transpak Automatic Transmission Recalibration Kit - B&M - 20228

2 sold in last 8 hours
B&M
ds_BBFT_20228
19 In stock
$135.00 $125.99
The B&M 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 Transpak kit for 1965-1987 GM TH400/375 automatic...
$125.99

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Transpak Automatic Transmission Recalibration Kit - B&M - 20228
The B&M 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 Transpak kit for 1965-1987 GM TH400/375 automatic transmissions. Most stock automatic transmissions wont downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear youre 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 youre 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.
Resources
Installation Instructions
Resources
Installation Instructions

Specifications:

Automotive Item Grade High Performance
California Proposition 65 Chemical Name 1 Cadmium and cadmium compounds
Description_ASC Holley Performance Emission Code 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
Description_ASM Fits 1965 to 1987 GM Turbo-Hydramatic 400; Turbo-Hydramatic 375 and M40 automatic transmissions
Description_CAP B&M Warranty
Description_DEF Auto Trans Valve Body Kit
Description_DEF Automatic Transmission Shift Kit
Description_DES Transpak Automatic Transmission Recalibration Kit
Description_EXT Transpak Automatic Transmission Recalibration Kit; Allows Calibration Of All Shift Points; Firmer Shift Feel;
Description_FAB Downshift At Any Speed
Description_FAB For Heavy Loads Driving Downhill
Description_FAB Great For Trailer Towing
Description_FAB Improves Transmission Life
Description_FAB Optimum Performance
Description_FAB Recalibrate Auto. Transmission
Description_FAB Select Your App. Mode
Description_FAB Trans. Removal Not Required
Description_INV TRANSPAK TH 400 65-87
Description_KEY 20228; Transpak; B/M; b and m; transmission; manual; automatic; shift kit; improver; transkit; racing; knob; lever; torque converter
Description_LAB Made In Logo
Description_MKT The B&M 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 Transpak kit for 1965-1987 GM TH400/375 automatic transmissions. Most stock automatic transmissions wont downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear youre 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 youre 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.
Description_SHO Auto Trans Shift Kit
Gasket Or Seal Included Yes
Instructions Included Yes
Level1 Level 1: Transmission
Level2 Level 2: Service Kits
Manual Control Partial
Package Contents Gaskets, Drill Bits, Seals, Retaining Ring, Brass Plug, and Shift Valve
Title B&M 20228 Transpak For 65-87 TH400 Transmission
Trans Model GM- TH350 (Auto) 3 Speed
Trans Model GM- TH375 (Auto) 3 Speed
Trans Model GM- TH400 (Auto) 3 Speed
Trans Year 1965
Trans Year 1966
Trans Year 1967
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Trans Year 1971
Trans Year 1972
Trans Year 1973
Trans Year 1974
Trans Year 1975
Trans Year 1976
Trans Year 1977
Trans Year 1978
Trans Year 1979
Trans Year 1980
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Trans Year 1985
Trans Year 1986
Trans Year 1987
WARNING CA Proposition 65 No

Special Order Policy & Cancellations

Special order parts are defined by Grudge Motorsports, LLC as any product, auto part, performance part, tool, accessory, etc., that we do not currently have in stock, that are on backorder, or that we do not stock as a shelf item which may be due to lack of popularity or the part has various options that make each order unique. This does not mean the part is not currently available. Many manufactures keep less popular parts they produce in stock and can process orders we submit quickly. If the manufacturer has the item in stock it will normally drop ship directly to you within 5-7 business days depending on your location and the type of shipping required. Otherwise the factory may have to produce or final finish a part which typically ships in 3-6 weeks but can take up to 12 weeks or more for certain parts.

There is NO guaranteed delivery date for any special order and manufacturers often change the expected ship date several times. Contact us before making a purchase if you want to get more info on an estimated ship date which will help avoid cancellation issues.

ALL SALES ON SPECIAL ORDERS ARE FINAL. NO CANCELLATIONS, REFUNDS, OR RETURNS WITH EXCEPTION TO DAMAGED UPON RECEIPT OR RECEIVED A PRODUCT DIFFERENT THAN PRODUCT ORDERED. THE ORIGINAL MERCHANT TRANSACTION FEE (3-7% depending on your payment method) IS NON-REFUNDABLE AND WILL BE DEDUCTED FROM ALL RETURNED ORDERS.

Special orders are sent directly to the manufacturer and usually drop ships directly from them in many cases but occasionally ships to one of our distribution centers and then shipped to the shipping address provided at purchase. In these cases we work extra hard to expedite getting the order shipped quickly.

Updates on special orders are available upon request only and we do not provide phone support for special order status updates. If you need help with an order start by selecting the Orders link on our site or the Order Support button in the email received a time of purchase and submit the appropriate form. We will NOT respond to random emails or phone calls requesting status, returns, or cancellation.

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Use these quick links if you need to review the Terms & Conditions, Return Policy, or Special Order Policy agreed to at time of purchase.

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Select the appropriate buttons below to view your account, check the status of your order, start the return process if you received a damaged or incorrect part, or even request to cancel a special order you placed. Just click the button below.

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