Installation Assistance Needed Roadmaster Rear Anti-Sway Bar

Question:

Need something showing how to install the bolts on the frame mounting hardware for the 1109-101 sway bar on 2021 GMC 2500HD. The bolts that came with it are 1inch to short. The bolts that came with it was 3 1/2s long with no nuts. They need to be 4 1/2s long and with nuts. The bolts needs to go through the frame.

asked by: Tim F

Expert Reply:

I contacted Tech Support at Roadmaster to verify fitment, they confirmed that the Roadmaster Rear Anti-Sway Bar, # RM25FR, 1109-101, is the correct item for your 2021 GMC Sierra 2500HD. They also confirmed that proper installation does use a 3-1/2" bolt, specifically an M12x1.75-90mm. Unfortunately we do not have an installation video created for this product.

expert reply by: Michael R