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Product Details
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Vehicle Compatibility
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Key Features
B&M Shift Improver Kit - GM TH400 Transmissions
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.
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.
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Product Videos
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Product Specifications
Automotive Item Grade
High Performance
Brand
B&M
California Proposition 65 Chemical Name
Cadmium and cadmium compounds
California Proposition 65 Required
Yes
Category
Transmission
Emission Code
5
Gasket Included
Yes
Instructions Included
Yes
Manual Control
No
part type
Automatic Transmission Shift Kit
Product Type
Automatic Transmission Valve Body Kit
Sub Category
Service Kits
Warning
California Proposition 65
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Package Contents
Kit includes all necessary components. Please refer to manufacturer specifications for detailed package contents.