Availability of Trailer Suspension Shackle Bolts in 4-inch Length and 9/16-Inch Diameter

Question:

I need to use the welded in perches, that are 3 inches outside dimension and shim the inside against the new springs 1-3/4 . What I need is the parts in this kit except I need 4inch, 9/16inch bolts. Do you have these available? Thanks.

asked by: John

Expert Reply:

We do offer leaf spring shackle bolts as separate items. The linked page will show you all lengths, including 4-inch and 4-1/2-inch. In your required 9/16-inch diameter the longest bolt we have is the
Redline # 34007-187-00 which is 3-7/16-inches. The 4-inch and longer shackle bolts are different diameters, such as the Redline # 38-4TB which is 4-inches x 3/8-inches diameter.

You will be better off using hangers of the correct width for your 1-3/4-inch springs, rather than shim them. We do offer hangers for 1-3/4-inch wide springs in various heights with a 9/16-inch bolt hole diameter and these can be seen on the link provided.

I also linked our main page for all trailer suspension components where you can check for individual components that will work for you if a complete kit with all the correct items does not happen to be available. Also included are two articles on trailer suspensions which may be of interest to you.

expert reply by: Adam R