Result: Spring Shackles

Learn how to inspect your trailer suspension after winter storage. Check leaf springs, shackles, bushings, and axle alignment before towing this season.

What do you need for double-eye leaf spring trailer suspension? When do you replace suspension parts, and what measurements do you need? We answer all your top double-eye leaf spring suspension questions in this review.

Measuring trailer leaf springs requires little else but some measuring tape and the will to learn the most convenient method. Whether you have double eye or slipper springs, you'll be equipped with the knowledge to identify the parts of a leaf spring and measure them accurately.

If you've never checked out the underside of your trailer before, it's likely you have no idea what is a leaf spring is or what it does. So, what makes your ride so smooth, and how exactly does that magic happen? Here's your starting point for the answers you seek.