What Are the Torque Specs for Trailer Suspension Parts
Question:
On the leaf spring suspension how tight should all the bolts be torgued to? Hanger, u bolts and others
asked by: Thomas B
Helpful Expert Reply:
I have attached for you below some common torque values needed for a trailer suspension system but a lot of these will vary by bolt size and other factors.
U-Bolts: Varies by Size - 1/2" bolts: 45 ft/lbs - 70 ft/lbs, 9/16" bolts: 65 ft/lbs - 95 ft/lbs, 5/8" bolts: 100 ft/lbs - 120 ft/lbs, 3/4" bolts: 140 ft/lbs - 160 ft/lbs
Eye Bolts: No Torque - Snug But Not Restrictive
Spindle Nut: No Torque - Hand Tight Plus Quarter Turn
Brake Flange Bolts: 45-50 Ft Lbs
I have attached a list of our torque wrench selection for you to look through as well.
Product Page this Question was Asked From
6-Leaf Double-Eye Spring for 5,300-lb Trailer Axles - 24-7/8" Long
- Trailer Leaf Springs
- Double Eye Springs
- 5300 lbs
- 1-3/4 Inch Wide
- 6 Leaf
- 24-7/8 Inch Long
- Universal Group
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs
- Shop: Trailer Wiring
- Q&A: Upgraded Equalizer and Replacement Leaf Springs for 2020 Grand Design Transcend 27BHS
- Shop: MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 3-1/8" Long Shackle Straps
- Shop: Dexter Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3.5K
- Shop: Dexter Heavy Duty Suspension Upgrade Kit for Single Axle Trailers - Double Eye Springs
- Shop: Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links
- Shop: 7-Way Molded Connector w/ 18' Cable - Trailer End
- Shop: CE Smith U-Bolt Kit for Mounting 3,500-lb, Round Trailer Axles - 5-1/2" Long U-Bolts - Zinc
- Video: SumoSprings Trailer Helper Springs Review
- Video: Gorilla-Lift Utility Trailer Tailgate Lift Assist Installation
- Q&A: Trailer Wheel Torque Spec Chart
- Video: Review of Optronics Trailer Lights - Tail Lights - OPT24NR
- Article: How to Replace Trailer Leaf Springs in 5 Steps
- Q&A: Torque Spec For Leaf Spring Shackle Bolts
- Q&A: Torque Specs for Wet Bolts for Dexter Axle E-Z Flex Suspension Kits
- Article: Double-Eye Trailer Suspension System Review
- Shop: Brake Controller
- Q&A: Torque Spec for Tightening Trailer Brake Assemblies to Trailer Spindle
- Q&A: Equalizer Upgrade Recommendation For 7-3/4 Inch Long Equalizer on Tandem Axle Trailer
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Video: Lippert Tandem Axle Road Armor Wet Bolts and Shackles Kit Review
- Q&A: Installation of Solera Manual Pull Style to Power Awning Conversion
- Shop: Truck Bed Tailgate Assist
- Shop: Tailgate
- Video: Review of Dexter Trailer Leaf Spring Suspension - U Bolt Kit 5200 7000 lb Round Axle - APUBR-8
- Shop: Suspension Enhancement
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Article: How to Accurately Measure Trailer Leaf Springs