GM Rear Support Bar Bracket Kit A required bracket kit for ACS installation on newer Chevy and GMC 1500, 2500, and 3500 trucks. Part # 00-GMHDBK-1454. In stock. Required for ACS installation on 2019+ Chevy & GMC 1500 light-duty trucks, and 2020+ Chevy & GMC 2500/3500 HD trucks. ✓ Required hardware — not optional for the trucks listed above; your ACS install depends on it. ✓ Covers 1500 through 3500 HD — one kit for the full lineup. Specifications Fitment 2019+ Chevy & GMC 1500; 2020+ Chevy & GMC 2500/3500 HD Installation Required as part of your ACS bed rack installation on the trucks above. Download the installation instructions (PDF) → Frequently Asked Questions See all FAQs → Do I need this to install my ACS rack? Yes, if you have a 2019+ Chevy/GMC 1500 or a 2020+ Chevy/GMC 2500/3500 HD, this bracket kit is required for installation. Does this fit older GM trucks? No, it's specific to the model years listed above.
