30 inch Long Slipper Spring Recommendation for Boat Trailer

Question

Question:

I need help on springs for a dilly boat trl aprox: 1973 model 1.75 wide leaf slipper style from bolt eye to slipper attachment or slide bolt is 30

asked by: David N

1

Helpful Expert Reply:

We have a few options for 30 inch long slipper spring that is 1-3/4 inches wide.

For a 3,700 lb axle option we have the part # SP-040275.

For a 2,900 lb axle option we have the part # SP-039275.

For an 1,800 lb axle you would want the part # e29SR.

expert reply by: Jameson C

1

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Answer 1

For a slipper spring that would work well for your application you would want the part #e29SR. This is a 2k rated spring that is 30-1/4 inches long. This should be a much softer spring than what you have as it looks like your spring would be a higher…

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Answer 2

The CE Smith U-Bolt Kit for Mounting 1-1/2" Square Trailer Axles #CE23102 that you referenced includes two u-bolt plates, 8 nuts and washers, and 4 u-bolts. In other words it comes with two sets and not just one like you asked.

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Answer 3

Yes the slipper spring part #e29SR that you referenced can install below the trailer axle. I attached a picture that shows it installed in this orientation.

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Answer 4

The closest leaf springs we have to what you're describing is part #e29SR. these are 30 inches from the center of the eye to the very end of the slipper end. One thing to keep in mind is your springs are going to be longer than they were when…

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Answer 5

Installing the U-bolts and plate like that would be fine, but I would recommend putting the plate on the leaf springs and running the U-bolts around the axle instead. The good news is you're replacing them so you can make that change when you…

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Answer 6

Hey Roy, The only U-bolt kit we currently only offer for 1-1/2" square axles is part #CE23102, which only has a 3-3/8" length so it likely wouldn't be the best option for you. Instead you'll want to order the 1-1/2" Square…

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Answer 7

In a typical leaf spring trailer suspension a spring seat like #TRSS300 is welded to the axle but the u-bolt plate is not. The u-bolt plates are bolted around the axle and leaf spring and these hold the spring in place on the spring seat and to the…

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Answer 8

The best matching option we have is the part #e29SR which is for an 1,800 lb trailer axle and is overall 30 inches long.

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Answer 9

The longest 1-3/4" wide slipper spring we carry is 30" from the center eye hole to end of the flat slipper end. We have springs for 1,800lb #e29SR, 2,900lb #e49SR and 3,700lb #e89SR axles. With your axle diameter being 1-3/4" in…

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Answer 10

Yes, you want your entire hub completely filled with grease. This prevents the grease from being flung out of the bearings. If your spindle does not have a grease zerk like the #TRU74FR to fill the hub with grease you can use a device like the…

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Answer 11

The only difference between the Flat and Radius end slipper springs is the shape of the end of the spring with the radius having an arch and the flat being flat as you can see in the included pictures of the Radius End #SP-179275 and Flat End #e29SR.…

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Answer 12

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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30 inch Long Slipper Spring Recommendation for Boat Trailer

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