Replacement U-Bolts for a 7,000 lbs Axle
Updated 10/13/2025 | Published 10/09/2025
Products Featured in This Question
Question:
I have a 2024 Voltage Vseries 3800. It does have tandem 7K Dexter axles. I would prefer to purchase new longer ubolts and nuts instead of reusing my old ones. Do you have a part number you can share?
asked by: Bryan B
Expert Reply:
Hey Brian, that's a great call. It is highly recommended to replace your U-bolts after you take them off for any reason. The nuts are only meant to be torqued down once.
The longest U-bolts we have for a 3" diameter 7,000 lbs axle are the Redline item # APUBR-9. They measure 7-1/16" and you'll need one set per axle.
I saw you were looking at the Roadmaster Comfort Ride Leaf Spring Suspension Kit item # RM-2460-2570. Is this why you are needing new U-bolts?
You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.
(click to enlarge)
Product Page this Question was Asked From
Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles
- Trailer Suspension Parts
- Equalizer Upgrade Kit
- Leaf Spring Replacement System
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- 7000 lbs
- Round Axle - 3 Inch
- Tandem Axle
- Roadmaster
more information >
Featured Help Information
Instructions
Continue Researching
- Search Results: wheel bearings
- Search Results: drill bit
- Search Results: bronze bushing trailer leaf springs
- Search Results: spring bushings
- Search Results: tie plate
- Shop: Long U-Bolt Kit for Roadmaster Comfort Ride Suspension System - For 3-1/2" Diameter Axles
- Search Results: axles
- Search Results: roadmaster trailer suspension parts
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Tandem 7K Trailer Axles
- Q&A: What U-Bolts Do I Need For The Roadmaster Comfort Ride Suspension Kit
- Q&A: Can MORryde X-Factor and Roadmaster Comfort Ride Systems be Installed Together?
- Shop: U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts
- Shop: MORryde X-Factor Crossmember for Standard Frame Hangers
- Shop: U-Bolt Kit for Mounting 5,200-lb to 7,000-lb, Round Trailer Axles - 7-1/16" Long U-Bolts
- Shop: MORryde U-Bolts for 5,200-lb to 7,000-lb Round Trailer Axles - Qty 4
- Q&A: Is 7K or 8K Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shocks Better for 7K Axles
- Q&A: Wet Bolt Recommendation For the Roadmaster Comfort Ride Leaf Spring Suspension Kit
- Q&A: Do Bronze Bushings Need to be Used with MORryde X Factor and Roadmaster Comfort Ride
- Shop: Replacement Bushing for Roadmaster Comfort Ride Slipper Spring System
- Q&A: What Grade is the U-Bolt of the U-Bolt Kit part # APUBR-1
- Q&A: Grade of U-Bolt in the U-Bolt Kit APUBR-1
- Video: Installation Guide for the Roadmaster Comfort Ride Leaf Springs - 2018 Grand Design Reflection Fifth
- Video: MORryde X-Factor Crossmember Installation - 2020 Grand Design Momentum 5W Toy Hauler
Bryan B.
10/11/2025
Yes. I am copiling my parts list when I do the Roadmaster Comfort Riide kit.