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Didn't know there was such a thing? Neither did I! 
The M116A3 based HSTRU trailer always towed nose low, and that bothered me. I was looking for a way to adjust the lunette when I found the piece in pic 1 in the junkyard.
I figured I could use part of it to fab up something adjustable, bought it for $4 (they sell by weight).
When I got home, I carried it over to the HSTRU and noticed that the big hinge bolt holes matched up exactly. Hmmm...
Went inside and looked at the exploded parts diagram in the manual, and the rear half of what I had matched up!
Yesterday I took the original lunette off and installed the adjustable one. All went easily (shocking as that may seem for an MV mod) and it was back together quickly. Everything works as it should.
The new lunette is now 4" lower than the original, and the HSTRU sits level on the back of the M1009 (I know, but it's light. The box is aluminium and empty, no tools).
There is no part number anywhere on the adjustable bit. The blue tag on it was blank. My manuals don't show the part, maybe later ones do? Or it was for a specific application and it's in that manual?
But now that we know the part exists, y'all can look out for one and know what it is.
Cheers
PS- the brake lockout pin is for pushing trailers around backwards with my tractor, surge brakes don't like backing up on uneven ground! And no, there are no tail-light lenses on the M1009, I'm installing new ones today.
The M116A3 based HSTRU trailer always towed nose low, and that bothered me. I was looking for a way to adjust the lunette when I found the piece in pic 1 in the junkyard.
I figured I could use part of it to fab up something adjustable, bought it for $4 (they sell by weight).
When I got home, I carried it over to the HSTRU and noticed that the big hinge bolt holes matched up exactly. Hmmm...
Went inside and looked at the exploded parts diagram in the manual, and the rear half of what I had matched up!
Yesterday I took the original lunette off and installed the adjustable one. All went easily (shocking as that may seem for an MV mod) and it was back together quickly. Everything works as it should.
The new lunette is now 4" lower than the original, and the HSTRU sits level on the back of the M1009 (I know, but it's light. The box is aluminium and empty, no tools).
There is no part number anywhere on the adjustable bit. The blue tag on it was blank. My manuals don't show the part, maybe later ones do? Or it was for a specific application and it's in that manual?
But now that we know the part exists, y'all can look out for one and know what it is.
Cheers
PS- the brake lockout pin is for pushing trailers around backwards with my tractor, surge brakes don't like backing up on uneven ground! And no, there are no tail-light lenses on the M1009, I'm installing new ones today.
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