4L80E Shift Kit 1991-Up

Overview

This is a shift correction and reprogramming kit for the GM, Chevrolet, GMC, Cadillac 4L80E automatic transmission (1991-Up). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade 4L80E repair or rebuild. Every 4L80E order ships fast and is backed by our support team.

What's Included

• recalibrated valve-body springs and valves
• checkballs and separator-plate components as applicable
• step-by-step installation instructions

Fitment

Fits GM, Chevrolet, GMC, Cadillac vehicles equipped with the 4L80E automatic transmission, 1991-Up. Please confirm your transmission model and year before ordering to ensure correct fitment.

Common Symptoms & When to Use

Consider this 4L80E part when you experience:

• soft, mushy or delayed shifts
• slipping or shift flare between gears under load
• harsh or erratic shifts and shift-related codes
• clutch and band burnup on towing or high-power builds

Specifications

• Transmission: 4L80E
• Year Range: 1991-Up

Quality & Service

In-stock parts ship fast; special-order items ship within 3 business days. Free shipping on orders over $70. Backed by Core Transmission Parts — your source for 4L80E transmission parts.