How Tight to Get Boat Trailer Leaf Spring Shackles
Question:
How tight do the bolts on the shackles have to be? Do the shackles move as the trailer bonces?
asked by: Francis V
Expert Reply:
There is no specific torque rating for shackle bolts. You'll want to ensure that the bolts you use are long enough so that when installed you will have at least 2 threads protruding from the nut. Make sure that the bolt you're using has a lock nut, like part # 166081. If the bolt you are using has knurls at the bolt head, tighten the bolt down until the knurls go through the shackle link or hanger and the bolt head is flush. Then back off the nut slightly so that all of the components are pulled together but not so tight they cannot move.
The shackles do move as the suspension moves.
Products Referenced in This Question
Shackle Bolt with Locknut for Double-Eye Springs - 3" Long
- Trailer Suspension Parts
- Suspension Bolts
- Camper
- Car Hauler
- Utility Trailer
- 9/16 Inch Diameter
- 3 Inch Long
- ABS Fasteners
more information >
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 >
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