See what our Experts say about this Redline Trailer Suspension Parts

• Looking For Square U-Bolt With 1.75" Inner Width
  Hello Bruce, thanks for reaching out. We do have one U-bolt with a 1-3/4" inner width, but it is a 9/16" bolt. They are 5" long overall and are threaded from 2-1/8" to the end. Take a look at the following: - Replacement U-Bolt with Nuts for 1-3/4" Wide, Square Trailer Axles - 9/16" Diameter # 175130 I have provided a diagram with dimensions for you below. Do you think this will work?
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• Replacement U-Bolt Kit, Leaf Springs, Bolts and Shackles for 68 Aristocrat Lo Liner Trailer
  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 install them. Once you have your axle measurements we do have some kits you could use. If it is a 2" square axle the # CE23103 or for a 1-1/2" square axle the # CE23102. If it is 1-3/4" you will need the # 175130 along with the # 116308. Since you...
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• Lift Kit Adding 2" For 1-3/4" Square Axle 5x8 Trailer.
  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 part # E4139. This hanger is designed for double-eye springs and is 4-1/4 inches tall. The old hangers will need to be cut off and the replacement hangers welded on by a professional.
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• Can Unique Leaf Springs be Replaced on a Very Old Trailer
  I believe the hubs are for 2,000 or 2,200 pound agricultural axles which is why the springs look so different. These hubs are designed for very low speed applications (5 to 10 miles per hour according to HADCO) so if you plan on going faster than that you will need to look at replacing the axle and hubs. You could use 2 of spring # e66SR. Each spring has a capacity of 1,250 pounds. If a new hanger kit is needed you can use # APS1. When used with spring e66SR the center to center distance...
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• Will a Leaf Spring Work on a 2 Horse Trailer With a Slant Ramp
  You were right on the money thinking that the 4-Leaf Double-Eye Spring # e54SR should work with your slant ramp on your 1989 Aluminum Classic Trailer. Through some research, I was able to find out that Redline supplies many of the ramp springs to horse trailer manufacturers. The key point to make sure these are the correct ones is to measure the ones you currently have - I realize they are broken, but, do the best you can. You need to measure from center of one eye to the center of the...
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• U-Bolts for 1-3/4 Inch Square Axle
  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 have added links to video reviews of both products for you.
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• Can Round Trailer Axle be Replaced with Square Trailer Axle
  Yes, you can replace a trailer's round axle with a square axle as long as the weight capacity is appropriate. You will need a new U-bolt kit to connect the axle: 1-1/2 inch square axles # CE23102 1-3/4 inch square axles # 175130 for the U-Bolts and # 116308 for the plate 2 inch square axles # CE23103
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• Suspension Replacement For Stock Trailer With 26 Leaf Springs
  To refurbish the suspension on your 1970 Champ Stock Trailer you will need a handful of items. For a suspension kit with equalizers order the etrailer # e99ZR kit including 2 standard steel equalizers where width is 7-3/4” from center of mounting hole to center of other mounting hole. Includes bolts and lock nuts sized for 1-3/4” wide springs. Suspension kit does not have the size shackle straps that you need so you will want to order 8 TruRyde # TRSL275 straps measuring 2-3/4” on center. For...
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• Replacing Inverted Leaf Spring Suspension on Old Utility Trailer
  The first thing you will want to do is to remove the current springs from the frame and the axle. You can still use your axle if it is in good working order, but you will also want to remove any hardware welded to the axle. To install leaf springs, you will first want a hanger kit. For your single axle trailer, I recommend Redline's Single-Axle Trailer Hanger Kit for Double-Eye Springs # APS1. This hanger kit will have a 1-1/2 inch drop for the front hanger, and a 7/8 inch drop for the...
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• Replacing Slipper Springs on Magic Tilt B16W Boat Trailer
  The best way to determine the length of the slipper spring you will need for your trailer is to measure the spacing, center to center, of the spring hangers. If this spacing is approximatley 23 inches, we have a couple of springs that can work well for you. If your spacing is different, feel free to let me know and I will see if we have a spring that will work for you. If your spring hanger spacing is 23 inches, a great replacement slipper spring is the SP-179275 4-Leaf Slipper Spring,...
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• Can Round U-Bolts Be Used On a Square Axle Tube?
  You need to use square U-Bolts with having a square axle tube. Trying to use round U-Bolts you risk damaging both the bolts and the axle as it creates pressure points rather than distributing the load across the surface. We have a few different size bolts you can see in the list below. 1-1/2" U-Bolts # SP01-120 1-3/4" U-Bolt # 175130 2" U-Bolts # SP01-160
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• What Drill Bit Size to Use to Install Redline Replacement Trailer Axle U-Bolt with Nuts # 175130
  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 will want to ensure that the bits you are using are intended for drilling in the material on your trailer. Please refer to the photo provided which shows the dimensions of this item. Often it is easier to start a smaller-diameter pilot hole,...
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• Bolt Hole to Bolt Hole Measurements for 2,000 lb Coupler for 2 Channel and 1-7/8 Hitch Ball
  I took a look at each of the 2,000 lb trailer couplers that fit a 2" channel and connect to a 1-7/8" hitch ball, and none of them have bolt hole to bolt hole measurements of 1-1/4". The Channel Tongue Trailer Coupler # CT-2001-Z has a 2-1/4" on center measurements. The 1-1/4" bolt hole to bolt hole measurement you have is going to be too small for any of the current trailer couplers so what I strongly recommend is that you drill new holes which will allow you to use the coupler of your...
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• What is the Thread Length on the Replacement U-Bolt, # 175130
  I went out to the warehouse and measured a Replacement U-Bolt, # 175130, and the threaded part was 2-1/8 inches long.
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• Threaded Section Length of U-Bolt # 175130
  The u-bolt part number you mentioned is discontinued but it's exact same as the part # 175130 which has a threaded section that is 2-1/8 inches long.
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• Availability Of 1-3/4" Wide Square U-bolts
  Hey Adam, thanks for reaching out. I am sorry to say that we do not offer a U-bolt that fits your specifications. We currently offer only one 1-3/4" wide square U-bolt, part # 175130. This has a 9/16" diameter and is 5" long. So, a good bit larger than what you are looking for, but this will be our closest option. I suggest that you try a local hardware supply store. That or find a way to make it work with slightly larger U-bolts.
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• Replacement For Square U-Bolt 1-5/8" x 3/8" x 4" Long
  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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• Is Redline Replacement Trailer Axle U-Bolt # 175130 Galvanized or Zinc Plated
  The Redline U-bolt you referenced, part # 175130 is constructed of raw steel that has been lightly oiled to prevent corrosion during storage. It is not Galvanized or zinc plated.
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• Switching From Slipper Springs to Double-Eye on a Single 2K Axle Trailer with Square Axle
  To switch to double-eye spring suspension I recommend getting parts individually since the u-bolts cannot be swapped out of kits. The spring in the kit is # e84SR. We have a few different u-bolt kits for square axles including # CE23102 for 1-1/2 inch square axles. For a 1-3/4 inch square axles you can use u-bolt # 175130 and plate # 116308. And for 2 inch square axles we have # CE23103. You will also need a new hanger kit since double-eye springs use different hangers than slipper springs....
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