What Torque Should Be Used For U-Bolt Nuts On Trailer Suspension
Updated 02/06/2025 | Published 04/30/2017
Question:
Hello, I am changing the leaf springs on my boat trailer. When I tighten down the u-bolts, is there a foot pound number I should tighten them down to?
asked by: Lenny B
Helpful Expert Reply:
If the U-bolts are 9/16 inch diameter, the torque specs should be between 65 to 95 foot lbs.
If the U-bolts are 3/8 inch diameter, the torque should be between 30 and 50 foot lbs.
Anthony
2/4/2025
I have a 10000 dual axles i realigned the axles put new hangers and equalizer im wound what are the inch pounds they get torqued down too
Jameson C.
2/6/2025
Product Page this Question was Asked From
U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts
- Trailer Suspension Parts
- U-Bolt Kits
- Camper
- Car Hauler
- Utility Trailer
- 2000 lbs
- Round Axle - 1-3/4 Inch
- 3/8 Inch Diameter
- 4-1/4 Inch Long
- Dexter
more information >
Continue Researching
- Search Results: trailer leaf springs
- Search Results: trailer suspension parts
- Search Results: 40050
- Search Results: 14001
- Search Results: 41157
- Search Results: trailer hubs and drums
- Search Results: led awning lights
- Q&A: U-Bolt Torque Recommendation for 1/2 inch Diameter On Trailer Suspension
- Shop: Roadmaster Comfort Ride Leaf Spring Suspension Kit w/ Shock Absorbers - Triple 6K Trailer Axles
- Shop: U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts
- Q&A: Torque Rating Requirements for Installing Leaf Springs on a 7000 lb Tandem Axle Trailer
- Shop: Solera Regal Electric RV Awning Hardware Kit - 12 V - 69" Arms - Black
- Shop: TruRyde Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand Assemblies - 7K
- Video: 4-Leaf Double-Eye Spring for 4,000-lb Trailer Axles Spec Review
- Shop: Easy Grease Trailer Hub and Drum Assembly for 5.2K - 7K Axles - 12" - 8 on 6.5 - Pre-Greased
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand - 5.2K to 7K
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class IV - 2"
- Video: DeeMaxx Disc Brakes | Expert Insights from the Manufacturer
- Video: MORryde X-Factor Crossmember Installation - 2020 Grand Design Momentum 5W Toy Hauler
- Video: An In-Depth Look at the MORryde X-Factor Crossmember for Standard Frame Hangers
- Video: MORryde Standard Frame Hanger X-Factor Crossmember Installation - 2022 Grand Design Imagine Travel T
- Q&A: Availability of Heat Strip or Heat Pump for Furrion Chill Cube RV AC
- Article: Most Popular Wheel Bearings
- Video: Let’s Check Out the Easy Grease Trailer Hub and Drum Assembly for 5.2K
- Q&A: How to Find the Spindle Number on a Trailer Axle
- Video: Feature Review 4-Leaf Double-Eye Spring for 2,800-lb Trailer Axles
- Article: How to Tell the Weight Rating of a Trailer Axle
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Q&A: What Does the 5 and the J Indicate on a 15x5J Trailer Wheel and ST205/75D15
- Q&A: What is the Torque Requirement for 1/2 Inch U-Bolts for Trailer Suspension
on Trailer Suspension Parts
Dave
9/27/2024
Jeffery Hi, I need to re-align the bunks on our boat trailer and need to know if this also applies to the U-bolts for bunk brackets? Mine as 3/8" U-bolts with a nut and washer on each end of the bunk U-shaped bunk bracket bolt. Given bolt diameter I assume the correct approximate torque is 30 - 50 or around 40 foot pounds of torque. Though I'm uncertain of the threads per inch on this bolt and it appears they are zinc plated galvanized bolts not stainless steel. Thanks Dave