How to Measure For Replacement Slipper Spring Equalizer For Gooseneck Trailer

Updated 03/25/2026 | Published 03/23/2026

Products Featured in This Question

Spring Keeper Bolt with Locknut for Slipper Springs - 3-1/4" Long

(30)

$7.15

Equalizer for 2" Wide Slipper Springs - 12" Long - 7/8" Center Hole

(171)

$77.30

Question:

Im trying to find a replacement slipper spring equalizer for a 10k capacity gooseneck trailer.

asked by: Moe R

Expert Reply:

To get the right replacement, the key is matching your current equalizer since slipper spring setups can vary quite a bit, especially on a 10K gooseneck.

The easiest way to measure is with the equalizer still on the trailer. Start by measuring from the center of the mounting bolt hole to the center of the rear eye bolt hole. That center to center distance is the most important number because it determines how your axles are spaced and how the suspension cycles.

You’ll also want to measure the width of the equalizer where the spring sits to make sure it matches your slipper spring, which is typically 2 inches or 2.5 inches on heavier trailers. From there, measure the overall length and the height from the mounting holes down to the bottom of the equalizer so you can confirm it will fit properly within your hanger and provide the right amount of clearance and travel.

For example the Equalizer for 2" Wide Slipper Springs part # TREQ4541 measures 12" long and fits 2" wide slipper springs.

If you can grab those measurements or send over a quick photo of your current setup, I can help you match it up to the correct replacement so everything lines up and performs the way it should.

expert reply by: Heather A