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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.
B&M Shift Improver Kit - GM TH400 Transmissions
BBFT_20260
Sale price
$77.15 USD
Regular price
$86.95 USD
Description
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 |
| Description_ABR | BM ATSK |
| Description_SHO | Shift Kit |
| Description_INV | SHIFT IMPROVER KIT 6587 TH400 |
| Description_ASC | Fits 1965 to 1987 GM Turbo-Hydramatic 400, Turbo-Hydramatic 375 and 475 automatic transmissions |
| Description_DES | B&M Shift Improver Kit - GM TH400 Transmissions |
| Description_EXT | 1965-1987 GM TH400, TH375 & TH475 Automatic Transmissions. |
| Description_MKT | 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. |
| Description_FAB | 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 |
Shipping
This product is shipped directly from our supplier to ensure faster handling and availability. Because it is drop shipped, processing and delivery times may vary slightly from our standard in-stock items. You will receive tracking information as soon as your order ships, and our team is always here if you have any questions along the way.
Return policy
Our return policy is outlined in detail on our Return Policy page. Please note that certain items may be subject to additional requirements or restrictions set by the manufacturer, which must be met for a return to be accepted. If you have any questions before purchasing, our team is happy to help clarify any specifics.
