Again, the spring mount arms are quite a patchwork assembly and need not be; it's what I had on hand. I'm asking this design to provide up to 1000/lbs of additional lift to the rear of my coach. Applying this amount of lift at a point on the chassis 3-ft behind the torsion bar tubes should hopefully help mitigate the extra 400 lbs the Cummins brings to the party. If there are any strength issues (ie. flexing/bending) in service, I'll change out the arms for some 3"x3" heavy box channel. One thing I think I got right with this design is the ease of removal of the assembly for repair and/or access to the shocks and wheel hub assemblies.
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