1000 Universal Transmission Holding Fixture with Base J-8763-B OEM 121770

Overview

This is a professional transmission service tool for the Chevrolet, GMC, Duramax 1000 automatic transmission. Built to OEM specification and engineered as a direct-fit replacement for a professional-grade 1000 repair or rebuild. Every 1000 order ships fast and is backed by our support team.

What's Included

• a purpose-built tool for accurate transmission service

Fitment

Fits Chevrolet, GMC, Duramax vehicles equipped with the 1000 automatic transmission. Please confirm your transmission model and year before ordering to ensure correct fitment.

Specifications

• OEM Part Number: 121770
• Transmission: 1000

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 1000 transmission parts.