Correct U-Bolt Plate for 1-3/4" Diameter Axle and Leaf Springs

Question

Question:

I have been searching for a leaf spring shock absorber plate that mounts to the u-bolts on the underside of the axle but have found none for my application - 1-3/4inch diameter round axle with 1-3/4inch leaf springs, 2 1/4inch bolt hole spacing. I see you have similar plates for larger axles, but not for my particular need. Would you be able to help me or point me in the right direction? Thank you for your time.

asked by: Kevin H

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Expert Reply:

It sounds like you are looking for a u-bolt plate which holds the axle to the leaf spring pack via the u-bolts. If so, you can use the U-Bolt Plate part # TRTP175173 which is designed for 1-3/4" diameter axle with 1-3/4" wide leaf springs.

expert reply by: Conner L

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Answer 1

With square axles, neither of our over/under kits will be a fit to raise the height of the trailer so another option is to use longer hangers for the leaf springs. You will just want to confirm the hangar height. You may be able to use a hanger like…

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Answer 2

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 3

The angled portion of the flanges on the part #115983 should run front to back on your trailer and should angle away from your leaf spring. See the attached picture to see exactly how they should install. Typically there are bushings installed in the…

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Answer 4

The closest U-Bolts we have are the following. 1-1/2" x 1/2" x 5" #1753223 1-3/4" x 9/16" x 5" #175130 If neither of these will work for your application you can check your local hardware store.

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Answer 5

We don't have an over under kit for your application, but, you can make one. U-Bolt Plate - 1-3/4" Diameter Trailer Axle - 1-3/4" Wide Spring - 3/8" Bolts #TRTP175173 Spring seats welded to the axle like the Spring Seat for Typical…

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Answer 6

Since the diameter size of the posts on this u-bolt is 9/16-inch you can ideally use a 9/16-inch or 5/8-inch bit (or even a 1/2-inch bit if you have the room to move the drill around enough to ream the hole to the required size). In either case you…

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Answer 7

For a square axle that is 1.75" wide, you would want the Replacement U-Bolt with Nuts for 1-3/4" Wide, Square Trailer Axles #175130 along with the U-Bolt Plate for 1-3/4" Square Trailer Axles with 1-3/4" Wide Springs #116308. I…

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Answer 8

Typically 4-way wiring consists of 18 and 16 gauge wires. For a 4-way that has all 16 gauge wire you would want the Wesbar 4-Pole Flat Connector #W787264. The part #HM38138 uses 18 gauge for all wires but the white that uses 16 gauge.

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Answer 9

The 07100 bearing number you referenced is an Timken bearing that has the same dimensions as #L44643.

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Answer 10

The over under conversion kits like #K71-385-00 only work on round axles. What you can do depends on why you need to raise the trailer. If you need more clearance under the trailer you can replace the leaf spring hangers with longer ones. You have to…

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Answer 11

Axle flip kits are great options for raising the suspension of a trailer. Trucks weren't as tall back then as they are now so I'm not totally surprised your trailer is sitting so nose high. We have 2 inch square U-bolt kits like part #CE23103…

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Answer 12

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Correct U-Bolt Plate for 1-3/4" Diameter Axle and Leaf Springs

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