In-Depth Review of the 4-Leaf Slipper Spring w/ Flat End for 3,700-lb Trailer Axles Video

Yes, you are correct. In order to correctly take this measurement you will need to measure from the center of the spindle to the center of the main axle tube. I have included a picture for reference.

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…

Yes, you can replace your 3,500 lb 7-leaf springs with leaf springs that have 3 or 4 leaves because the weight rating is the same. The number of leaves isn't a determining factor; for example, there are 4-leaf springs for both 2k and 6k axles. So…

Hey Chuck. How wide is your axle from hub face to hub face? What size lug pattern do you currently have? In order to recommend the correct leaf springs I need to know how long yours are from the center to center mounting holes. I'll also need to…

When installed properly the portion of the bearing that attaches to the spindle should not spin. Only the outer portion should be spinning. It's pretty easy to overtighten a spindle nut since they don't have to be very tight so that would be…

There should be enough free play in the shackles to allow them to move. There is no specific torque rating for shackle bolts. The first thing you should make sure of is that the bolts you use are long enough so that when installed you will have at…

For the spring eye you would use the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long #166079, but slipper springs don't have the second spring eye, so a bolt is not used on the back end. You can also use a wet bolt like…

You will need 2 of the Front #CE14016G and Rear #CE14017G hanger brackets to attach 2 of the 2-Leaf Slipper Springs #SP-177275 to your cart. You will need 2 of the Zinc Shackle Bolts #TRFA73Z916DLNZ to attach the leaf springs to the front hanger. If…

Our U-Bolt kits are available separately due to axles having different sized and most hanger kits can be used with several different size axles. Here is a list of different size kits depending on your axle size. 1-3/4" Round Axle #CE23000…

Hi Clarence; leaf springs like the #EM48AJ you referenced and the #e39SR you ordered have a powder coat finish. This will resist the basic elements and help prevent corrosion. We also have leaf springs like the etrailer Rust-Resistant 6-Leaf Slipper…

You are indeed right to think this way. When picking out the appropriate leaf springs for your custom built trailer you will want to choose them based on what the actual loaded weight of the trailer will be. Just make sure that the leaf springs have…

You can use leaf springs that are rated higher than the axle without any issues as long as they measure the correct measurement for your trailer. For example the 6-leaf double eye spring for 7,000 lb axles part #e64SR measures 24-7/8" eye to…