
The Rust Buster RB7610 Spare Tire 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 ties into the rear frame rails, restoring proper spare tire support and rear frame strength in a common rust-prone area.
Constructed from heavy-duty 11-gauge steel, the RB7610 measures 39.30 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 spare tire crossmember delivers a durable, OE-style solution for S10 and Sonoma frame repairs.