The Roadmaster Polyurethane Bushing Kit for 1-1/2-Inch Diameter Factory Rear Anti-Sway Bar, part # RM-4139-125, includes two polyurethane bushings, steel U-shaped brackets plus a bag of installation hardware.
If you refer to the linked photo that shows a complete sway bar kit you will see two arrows indicating a pair of bushings with the steel U-brackets. Two of these are included in the replacement kit along with the bushings and hardware. view full answer...
That can be a bit confusing, but I can verify for you, that you will get two SumoSprings - for the left hand and right hand side - when you order them. So you'll get a pair when you purchase the following part:
- SumoSprings Solo Custom Helper Springs - Front Axle # SSF-106-47 view full answer...
The Roadmaster Front Anti-Sway Bar # RM72MR is only going to come with two 5/8" shackle bolts for the end links and would require you to reuse the factory M14 bolts and clamps that should've been on your motorhome. If they truly are not there you would need to get in contact with REV Group, Inc. (the manufacturer) to determine what the length of the 5/8" bolts need to be or you could get some that are a few inches in length and cut them down as needed and get the some locking flange nuts... view full answer...
The Replacement Bushing # RM-205219-10 is only 1 bushing for your Roadmaster 1-3/8" round sway bar. I always recommend replacing the bushings as a set on a sway bar. view full answer...