Reviews: N-Fab RKR Rails (Textured Black) - C194RKRCC

This is a review for N-Fab RKR Rails (Textured Black) - C194RKRCC, mounted on 2021 GMC Sierra 1500 Crew Cab AT4. Well, I am very glad to have the N-Fab RKR Rails - C194RKRCC. There is not much out there for the GMC Sierra 1500 AT4. However, these are not heavy duty rock sliders. Why? There are 3 brackets, each side with 2 screw holes for M8 x 30. These are not heavy duty bolts. The bolts go into a threaded hole in the frame. I would much rather have bolt and nut combination. Do not try to lift your truck using a Hi Lift jack using these rock sliders. The bolts may shear, or simply rip out of the threaded holes. Will these rock sliders save you money and prevent damage? Absolutely! Just know your limitations, and consider the shear strength of those bolts. BTW, threading and tightening that lower bolt equals to "a thousand ways to go to heaven" - it requires a patience of a Buddhist Monk. Otherwise the delivery was perfect, the product is extremely well packaged, no marks or anything on the black powder coating. Again, I am very satisfied.