So for the bottom stud, I removed it and replaced with a screw and lockwasher. Seems to fit nicely.
For the top stud - the nut came off and the stud stayed behind. The stud is too short so that I cannot screw the nut down enough to engage the full threaded length of the nut. I'd like to remove the stud and replace with a screw but I'll need to track down a stud extractor apparently.
The stiffener has two holes that are countersunk for use with the the lug nuts I sent you. They should tighten down nicely with existing studs. That said I don't know what you have on the tractor cause things get change around a lot on these old tractors. I think if you are going to go with bolts I would use a flat piece of steel instead of the one with the countersunk holes although I guess case hardened flat washer over the countersunk hole might work. A word of caution bolt should be the length you need and not longer in the bottom hole because the hole is a dead end hole. If too long you risk busting the ear on the block or striping the treads. Top hole goes clear thru so you can even use a long bolt and back it up with a nut.
You're referring to items 16 & 20, correct?
So the long one attaches to the tab on the loader (shown in Group 3-1) and connects to the short one which screws into the underside of the tranny? Is it a nut & bolt connection between the long bracket and the short bracket? Or is a hitch-pin what is typically used there? I would think it would be set up for quick detachment.
16 & 20 connect as diagram shows. Then the end of the long bracket is bolted to the loader frame tab. This is used to stabilize the unit when lifting. There is no quick release pin for this and would not use one. It would waddle out the hole and make the loader more unstable causing more stress on the trans mount pin.
BTW the 711 also came with a hyd bucket that's why Chris was asking which bucket you had. A 6' hose might be a bit to long. A quick disconnect at or near the valve is worth spending the extra money on if you are planning on taking the loader on and off.