How to Torque Suspension and Equalizer Bolts when Changing Shackles on a Horse Trailer
Updated 01/05/2012 | Published 01/04/2012 >
Question:
how tight should the equalizer center bolt be? how tight should the leaf spring shackle bolts be? while fixing my horse trailer I wasnt sure how much movement there should be. thank you
asked by: Gregory W
Expert Reply:
When replacing equalizer bolts and shackle bolts you will not use a specific torque rating for tightening the bolts.
The first thing you should make sure of is that the bolts you use are long enough so that when installed you will have at least 2 threads protruding from the nut.
Next, make sure that the nut you are using is a locking nut, so that it cannot work loose and fall off.
Next, if the bolt you are using has knurls at the bolt head you will want to tighten the bolt down until the knurls go through the shackle link or spring/equalizer hanger and the bolt head is flush. Then, back off the nut just a bit so that all of the components are pulled together but not so tight they cannot move with a bit of force.
We have an instructional video demonstrating how to replace an equalizer and spring shackles that should be very helpful, and I have provided links to the equalizers, hangers and suspension bolts that you may need.
Product Page this Question was Asked From
Curved Equalizer for 1-3/4" Wide Double-Eye Springs - 7-3/4" Long - 9/16" Center Hole
- Trailer Suspension Parts
- Standard Equalizer
- Camper
- Car Hauler
- Utility Trailer
- Double Eye Springs
- 7-3/4 Inch Long
- Tandem Axle
- Triple Axle
- etrailer
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Tandem-Axle Trailer Equalizer Kit for 2" Slipper Springs - 13-1/8" Long Equalizers
- Shop: Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs - 2-1/4" Links
- Shop: Wet Equalizer Bolt with Castle Nut and Grease Zerk - 4-11/16" Long - 7/8" Diameter
- Search Results: spindle washer
- Shop: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers - 1-3/4" Wide Double Eye Springs
- Shop: Equalizer Bolt with Cotter Pin and Castle Nut - 7/8" Diameter
- Shop: Equalizer Suspension Bolt with Grease Zerk Fitting - 5-1/4" Long
- Q&A: What is Normal Temperature Rating for Trailer Hubs
- Search Results: equalizer
- Shop: High Pointe Propane RV Range - 3 Burners - 16-1/4" Tall - Black
- Q&A: What is the Torque Rating for an Equalizer Bolt
- Video: The Low-Down on the Trailer Axle with Idler Hubs
- Shop: Trailer Hitch
- Search Results: towed vehicle battery maintainer
- Search Results: dump trailer battery charger
- Search Results: led trailer lights
- Video: Brake Flange Stud Spec Review
- Search Results: trailer axle
- Search Results: wheel bearing washer
- Video: Comprehensive Review: Dexter Heavy-Duty Suspension Kit for Tandem-Axle Trailers
- Video: Dexter Heavy-Duty Suspension Kit Installation - 2018 Grand Design Momentum 5W Toy Hauler
- Q&A: Troubleshooting Leaf Springs Bolts that are Binding Up When Shackle Bolts are Tightened
- Article: Double-Eye Trailer Suspension System Review
- Video: An In-Depth Look at the LED Trailer Fender Clearance Light
- Video: Review of CE Smith Trailer Suspension Parts - Shackle Bolts - CES25QR
- Video: Shackle Bolt For Double-Eye Springs Review
- Article: How to Accurately Measure Trailer Leaf Springs
- Q&A: Does It Matter If the Spring Center and Hub Face Is Different When Replacing A Trailer Axle
- Q&A: Comparing Bronze and Nylon Bushings for Trailer Suspension
- Q&A: Recommended Hanger Spacing for Triple Axle Trailer



