Air Shocks For a 61

[blown240]

I want to get some air shocks for my 61 Panel. I will only use them occasionally for load capacity.

I found Monroe part number MA757 that is the right length, and has the right bolt diameters from what I can see, but the upper and lower mounts are about 1.4 too wide.

Is there a part number that will work? The truck is lowered a but, but not so much that a stock length shock won't work.

Thanks!