12 products fit your

2003 Chevy Avalanche 1500

Add Engine

Show Direct Fit Parts

12 products

Clear All

Fitment

2003 Chevy Avalanche 1500

Department

Truck

Application

Truck Accessories

Category

Transmission

Transmission Family

TH200

Products

Related Articles

Transmission Replacement on a 55 Chevy

Transmission Replacement on a 55 Chevy

Read More

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

Speedway Chevy Engine to Chevy Transmission Steel Bellhousing

Speedway Chevy Engine to Chevy Transmission Steel Bellhousing

Read More

This new steel bellhousing from Speedway Motors is made for everyone who wants to run three pedals without spending a fortune or relying on a crusty original.

Historic Chevy Performance Engines

Historic Chevy Performance Engines

Read More

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

Installing a Transmission Crossmember - 1967 Chevelle

Installing a Transmission Crossmember - 1967 Chevelle

Read More

Learn about the G Force crossmember and how the symmetrical product design makes for a smooth installation on Jeff's 1967 Chevelle.

Showing all 12 results

Customer Impersonation Script