XM757, fifth wheel spacer

[cranetruck]

Got a question for the metal working experts, Leonard, Robert Miller and other respected members of this forum.

What alloy steel would I need to specify to have the spacer and the angle mounts fabricated shown in the drawing below?

The spacer is the U-channel part separating the 5th wheel from the frame so that the flange does not have to be drilled.

 

[ken]

I wouldn't use anything less than 4140. By the way, I have the 1 inch riser blocks from my M52A2 if you want them. I'm pulling them out to level my M127 some what.

 

[cranetruck]

Thanks Ken, but the idea with the U-channel spacer is to avoid drilling into the flange and I'll try to stick with the original design.

I'm assuming that you are referring to the item circled in the image below.

 

[DDoyle]

Bjorn,
I am pretty sure that I have the original specs, and perhaps a useful drawingm at home - if you can wait a week, I'll fix you up.

Regards,
David

 

[cranetruck]

A week? I can wait a year . No rush David, this is a long term project.

TIA for your input!

 

[ken]

Your right, That's the plates i was refering to. I figured you might use them between your 5th wheel and the frame bracket to level the trailor. Do you have a trailor for it?