
The Rust Buster RB7612 Transmission Crossmember is a heavy-duty replacement designed for 1994-2004 Chevy S10 and GMC Sonoma 4WD trucks, fitting all cab and bed configurations. This crossmember mounts to the inside of the frame rails between the forward and rear center frame sections, restoring proper drivetrain support and frame integrity.
Constructed from heavy-duty 11-gauge steel, the RB7612 measures 37.70 inches in length and features OEM-style hole locations for a precise, factory-correct fit. The crossmember installs using a bolt-on design and includes Class 10.9 mounting hardware for secure attachment to the frame rails. Each unit ships with an oil protective coating to help prevent oxidation during transit. For long-term corrosion protection, Rust Buster recommends finishing the repair with Rust Buster Rust Converter Paint RB9917. Backed by Rust Buster’s Lifetime Warranty, this transmission crossmember provides a durable, OE-style solution for S10 and Sonoma frame repairs.