How to Determine Hanger Spacing on a Tandem-Axle Trailer Hanger Kit for Slipper Springs

Updated 08/18/2015 | Published 08/17/2015

Question:

Hello, I just purchased Redline Trailer Suspension - AP216-H238 for a trailer Im repairing and had a few questions. Its a 1999, 6CAM16 Superline, tandem 7k axles with five leaf springs. The old hangers were already gone and I need to know if its 30 1/2inch from center to center of the new hangers? I see you answered a question similar to this on a 4K, four spring trailer, your tech said 30 1/2. I would like to see if my application is the same as well.

asked by: Garrett

Expert Reply:

There isn't a specific distance the hangers have to be for hanger kit # AP216-H238. A good place to start is 30-1/2 inches on center but you would only really know by mocking it up on the trailer before permanently installing the hangers.

To determine where the center between the 2 axles should be, and then to work and add the hangers from there, you can follow the formula in the picture I have included. Once you know where the center between the 2 axles should be it would just be a matter of placing the hangers and other components in the proper positions.

expert reply by: Michael H