B&M Automatic Transmission Shift Improver Kit TH400 TH375 M40 1965-87

Delivers Mar 23-27
30-Day Returns on unused items
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Ships from US Warehouses with tracking

Specifications

BrandB And M Automotive
CategoryEngine
Manufacturer Part #20260
UPC019695202606
SubcategoryAutomatic Transmission Shift Kits
Category GroupAutomatic Transmissions and Components
Ai SubcategoryAutomatic Transmissions and Components
Weight0.9 lbs

Product Description

The B&M Automatic Transmission Shift Improver Kit is designed for TH400, TH375, and M40 transmissions from 1965-87. This kit modifies the transmission's hydraulic circuits to deliver firmer, quicker shifts, which can enhance vehicle performance and reduce clutch wear. B&M is a leader in performance transmission upgrades.

Shipping & Returns

Fast Shipping

Standard delivery in 3-7 business days. Expedited options available.

30-Day Returns

Return unused items in original packaging for a full refund.

Questions & Answers

Check your vehicle owner's manual or the tire placard on the driver's side door jamb for the recommended tire size. You can also use our vehicle fitment tool at the top of the page to confirm compatibility. If you're unsure, our support team is happy to help you find the right fit.

We offer a 30-day return policy on unused, unmounted products in their original packaging. Simply contact our support team and we'll provide a prepaid return label. Refunds are processed within 5-7 business days of receiving the returned item. Mounted or used tires are not eligible for return.

We ship directly to your door or to your preferred local tire shop for installation. Most local tire shops offer mounting and balancing for $15-$25 per tire. Just provide your installer's address at checkout and we'll ship right to them.

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