Are Trailer Leaf Spring Weight Capacities Listed Per Axle or Spring

Updated 02/18/2020 | Published 02/17/2020

Products Featured in This Question

4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 25-1/4" Long

(2241)

$51.89

Wet Equalizer Bolt with Locknut and Grease Zerk for Double-Eye Springs - 3" Long

(771)

$11.38

2-3/8" Round Trailer U-Bolts (Qty 2)

(240)

$22.58

U-Bolt Plate - 2-3/8" Diameter, Round Trailer Axle - 1-3/4" Wide Spring - 1/2" Bolts

(33)

$4.96

Question:

is the capacity of leaf springs rated for the pair or individually? 3500lb spring? I have a 19ft bay boat with a 150 hp. My springs have gone completely flat and everything is rusted so I cant read anything on the trailer. It has the tapered spindles and hub assembly that I routinely replace/commonly bought at orielys or advanced. Im pretty sure they are 3 or 4 leaf. I want to replace the springs, bolts, ubolts Thank you for your time.

asked by: Mark P

Helpful Expert Reply:

The leaf springs we carry like the part # e54SR are rated by the axle capacity they were intended to be used on. So this spring is designed for a 3,500 lb axle. It has an individual spring capacity of 1,750 lbs.

To pick out the u-bolts you'd need I'd need to know the diameter of your axles. Most likely it's 2-3/8 inch so you'd need the # SP01-040 for the U-bolts and then for plates # TRTP238175. Then for new shackle bolts you'd just need the # 126B2 and you'd be set.

expert reply by: Jameson C