How Tight Should Shackle Straps and Bolts Be Tightened On Trailer
Updated 08/17/2015 | Published 08/15/2015
Question:
I have replaced the shackle straps on my double axle trailer, should the middle bolt that attaches the equalizer to the frame be loose enough so that the equalizer can float between the two leaf springs? Also how tight should the shackle bolts be?
asked by: Bob S
Expert Reply:
There is no specific torque rating for shackle bolts. Basically for the middle bolt there should be enough free play in the shackles to allow them to move.
Tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs and the whole suspension system will bind and cause problems. The best thing to do when tightening down shackle bolts is to use lock nuts and tighten them until they are snug and then backed off 1/4 turn. Lock nuts should be used because they resist loosening with vibration or torque.
I have attached a helpful article that explains trailer suspension you can check out. I have also attached a video about replacing shackle bolts you can take a look at.
Product Page this Question was Asked From
Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double-Eye Springs
- Trailer Suspension Parts
- Suspension Kits
- Boat Trailer
- Camper
- Car Hauler
- Snowmobile Trailer
- Utility Trailer
- Double Eye Springs
- Tandem Axle
- Dexter
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Q&A: How Tight Should Shackle Bolts Be Tightened On Trailer
- Search Results: morryde cre3000
- Search Results: moryde cre3000
- Article: How to Replace Trailer Leaf Springs in 5 Steps
- Search Results: dexter 8~247
- Shop: MORryde Suspension Upgrade Kit for Tandem Axle Trailers - 2-1/4" Long Shackle Straps
- Video: Review of MORryde Trailer Leaf Spring Suspension - Equalizers - MR27ZR
- Q&A: Should Wet Bolts be Torqued Tighter Than Instructions
- Search Results: grease seal 58846
- Search Results: 023~027~00
- Search Results: 023 027 00
- Search Results: 085~001~00
- Q&A: Wet Bolt Kit for 2012 Dutchman Aspen Trail 2810BHS
- Article: Double-Eye Trailer Suspension System Review
- Shop: MORryde 10" Shock Absorbing Equalizers for Tandem Axle Trailers w/ 42" Wheelbase - 8K
- Shop: Replacement Wet Shoulder Bolt - MORryde Suspension Upgrade Kits - 9/16" x 2-15/16" - Qty 1
- Shop: MORryde Shock Absorbing Suspension Equalizers for Tandem Axle Trailers w/ 35" Wheelbase - 8K
- Shop: MORryde Suspension Upgrade Kit for Triple Axle Trailers - 2-1/4" Long Shackle Straps
- Shop: MORryde Rubber Equalizers for Tandem Axle Trailers - 33" Wheelbase - 8K
- Shop: Kenda Karrier KR35 ST205/75R15 LRD Radial Trailer Tire w/ 15" Black Mod Wheel - 5 on 4-1/2
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Article: Is It Illegal to Leave My Hitch on My Truck?
- Article: Slipper Spring Trailer Suspension System Review
- Article: Trailer Maintenance Schedule
- Shop: Roof Rack
- Video: Review of the Unitized Oil Seal for Trailer Hubs
- Video: Hands-On with the Dexter Multi-Purpose Lithium Grease
- Video: All About the Grease Seal
- Video: Comprehensive Review: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers
- Video: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers Review
on Trailer Suspension Parts
