I got my seat on my 2520 today, and OMG was that EASY!

Thanks to the write-up by "JD25201965"!
I had the bracket welded up, and drilled by my machine shop. I primed and painted it last weekend, so it was all ready to go.
I took my time, and I am very picky, so I lock-tite'd every bolt even tho I used lock nuts!

I'd say it took my about 2 hours, because its a little tight getting in there to tighten those pesky bolts that hold the seat belt frame onto the lower frame. I then adjusted my FEL lever, so the lever now rests right in my hand when i have my arm on the armrest! It really worked out great! I didn't fire it up, and take it for a ride, BUT I am really excited to see how smooth it rides. It used to just destroy my back (I have bulged disks).
Anyway, Thanks again to "JD25201965" for this sweet detailed write-up.

I just took your drawing to my machine shop, and they almost soiled their pants when they saw your detailed picture and measurements! They made the bracket accordingly, and it dropped right on. I LOVE installations that go this easy!