Attaching Shackle Bolts and Spring Hangers to Utility Trailer
Question:
Do the 9/16 nuts with the marks thread on with the marked side entering the bolt first and also there are teeth on the bolts just under the head. Are these bolts driven on to engage the teeth or does tightening the nut pull them in. One other question, when bolting the springs to the trailer frame, do the nuts go on the inside?
asked by: Barry L
Helpful Expert Reply:
It makes no difference which direction the shackle nut or bolt head is facing. The bolt is not driven in, when the shackle bolts are tightened, the knurled portion of the bolt will be drawn into place. Make sure you use a lock nut, and snug it down then back it off about 1/4 turn so the shackles will not bind. If you use a wet shackle bolt with a grease zerk, you will want the zerk facing the outboard side of the trailer for easy access.
The movement of the suspension will make it almost impossible to keep the spring hangers tight to the frame if bolted, so we strongly recommend that spring hangers be welded into place. If you wish to also bolt them by running a bolt up through the frame and securing it from the top of the frame with a nut, you may do so but it is not necessary.
I have linked you to some trailer suspensions FAQ articles you might find helpful.
Product Page this Question was Asked From
6-Leaf Double-Eye Spring for 4,500-lb Trailer Axles - 26" Long
- Trailer Leaf Springs
- Double Eye Springs
- 4500 lbs
- 1-3/4 Inch Wide
- 6 Leaf
- 26 Inch Long
- Painted
- etrailer
more information >
Continue Researching
- Shop: Shackle Bolt with Locknut for Double-Eye Springs - 3" Long
- Shop: U-Bolt Kit for Mounting 2,000-lb, Round Trailer Axles - 4-1/4" Long U-Bolts
- Shop: 4-Leaf Slipper Spring w/ Radius End for 2,000-lb Trailer Axles - 24-5/8" Long
- Shop: Kenda 5.30-12 Bias Trailer Tire with 12" White Wheel - 4 on 4 - Load Range C
- Shop: Loadstar ST175/80D13 Bias Trailer Tire with 13" White Wheel - 4 on 4 - Load Range C
- Shop: Kenda 205/65-10 Bias Trailer Tire with 10" White Wheel - 4 on 4 - Load Range C
- Shop: Triangular Equalizer for 1-3/4" Double-Eye Springs - 6" Long - 9/16" Center Hole
- Q&A: Adding Brakes to a Mobile Home Axle
- Q&A: Lug Nut Torque & Inflation Pressure for Contender ST205/75R15 Radial Trailer Tire/Wheel TA47VR
- Shop: Brake Controller
- Video: Remove, Inspect, and Reinstall Trailer Bearings, Race, and Seals Demonstration
- Article: 5 Tell-Tale Signs It’s Time to Replace Your Trailer’s Leaf Springs
- Q&A: Lug Nut Torque Recommendation for Westlake ST205/75R15 Radial Tire w 15 Lynx Aluminum Wheel
- Q&A: Do Trailer Shackle Bolts Require Splines to Prevent Wear from Occurring
- Video: Deka Wiring 12-2-1 Review
- Video: TruRyde Trailer Bearings Races Seals Caps - Bearings - BK3-210 Review
- Q&A: How to Confirm Correct Size of Grease Seal
- Search Results: shackle links
- Search Results: brake wire gauge
- Search Results: bearing kit
- Search Results: 3500 lb axle bearings
- Q&A: What Part Do I Need to Fix My Tandem Axle Alignment on My 2019 Forest River Cedar Creek Fifth Wheel?
- Q&A: Replacing Mobile Home Trailer Hub With a Hub that is Compatible with Standard Rims and Tires
- Video: Review of MB Sturgis Bulkhead Fitting - MBS47FR
- Video: Redarc Tow-Pro Wiring Adapter for Curt Brake Controller Harness Review
- Search Results: propane quick connect
- Search Results: l bracket
- Video: Lippert Road Armor Shock Absorbing Equalizer Kit Review
- Video: TorkLift GlowStep Revolution Uprising Steps Installation - 2015 Northwood Arctic Fox Fifth Wheel
- Search Results: shackles
Bary L.
3/14/2013
Mike Thank you for your advice. Very helpful, Barry