I got a set of Rugged Ridge nerf bars on Amazon really cheap. The plastic step on one was cracked hence sold to me as a factory 2nd. They have been on my CJ7 for 4 years. The crack has not grown and they have taken rock hits many times and still look great. They are a lot stronger than I expected. I did throw out the factory mounting hardware (self tapping screws) and I used grade 8 bolts with nylon lock nuts through the frame.
1981 Jeep CJ7 258 4.0 HO head, T-5, D30, D44, SOA
1977 Chevrolet C/10 step side 454 TH400 3.73 posi