Forward Fuel Tank Crossmember for 2004-2012 Colorado/Canyon RB7523 Rust Buster FrameworksAre you a proud owner of a GMT355 chassis mid size truck, like the Chevy Colorado or GMC Canyon? Then you're no doubt well aware of its versatile nature and affordability. This, coupled with its practicality, performance, and reliability, make the 355 series very popular among truck buyers and enthusiasts. However, due to the box frame design, water and debris (such as road salt) drainage is a challenge. This can lead to water and other material