TH400 Reverse Shift Pattern Full Manual Valve Body 1965-1990 OEM 221100

Overview

This is a remanufactured valve body for the GM, Chevrolet, GMC, Cadillac TH400 automatic transmission (1965-1990). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade TH400 repair or rebuild. Every TH400 order ships fast and is backed by our support team.

What's Included

• a cleaned, inspected and vacuum-tested valve body
• updated valves and springs where applicable

Fitment

Fits GM, Chevrolet, GMC, Cadillac vehicles equipped with the TH400 automatic transmission, 1965-1990. Please confirm your transmission model and year before ordering to ensure correct fitment.

Common Symptoms & When to Use

Consider this TH400 part when you experience:

• harsh, soft or missing shifts
• no drive or no reverse
• erratic line pressure or converter lockup
• shift-timing complaints traced to valve-body wear

Specifications

• OEM Part Number: 221100
• Transmission: TH400
• Year Range: 1965-1990

Quality & Service

In-stock parts ship fast; special-order items ship within 3 business days. Free shipping on orders over $70 to the lower 48 states. Backed by Core Transmission Parts — your source for TH400 transmission parts.