Upgrade Kit for 2-1/4 inch Trailer Suspension Shackles

Updated 08/28/2025 | Published 08/27/2025

Question:

I am looking to upgrade my shackle links on my 2005 9900 gvwr enclosed trailer. I am unsure how to the correct fit with so many options. It is a dual axel.

asked by: Candido M

Trailer Suspension Shackle
(click to enlarge)

Expert Reply:

Hey Candido, thanks for the picture of your shackles. Based on that you have a 2-1/4 inch long shackle length which is very common so for an upgrade kit that includes much thicker shackles, wet bolts, and bronze bushings we have the part # MR46ZR. What made you decide you wanted heavier duty shackles?

expert reply by: Jameson C

Candido M.

8/28/2025

I appreciate the response. I decided to upgrade them due to the terrain I travel on (bumpy gravel roads) and based on forums I know these tend to "oval" out or just break. So as preventive measure I am upgrading them before that has a chance to happen.