You are correct that they are the same thing. The Roadmaster Comfort Ride Shock Absorbers for Tandem Axle Trailers # RM-2460 combined with the Roadmaster Comfort Ride Add-On Kit # RM-2460-50 will have the same parts as the Roadmaster Comfort Ride Shock Absorbers for Triple Axle Trailers # RM-2460-3. So there is no difference aside from that fact that one is for tandem axles with the add-on kit to upgrade for triple axles and the other comes with everything in one kit for a triple axle trailer. view full answer...
Between the Curt Flex Air 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs Item # LC369535 and the Curt Air Ride 5th Wheel Pin Box - Lippert 1621 & 1621HD - 21,000 lbs Item # LC158778 there is no difference in their bounce and chucking reduction. The only difference they have is there is a slight dimensional difference between the exterior bushing width measurements. LC158778 is 14-13/16" and LC369535 is 16-1/4".
Both Pin boxes eliminate bounce and shock from the road with their internal... view full answer...