4L80E Transmission Superior Shift Correction Kit/Valve Body Upgrade

Overview

This is a shift correction and reprogramming kit for the GM, Chevrolet, GMC, Cadillac 4l80e automatic transmission. 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. 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

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.