I've heard that you can just buy diaphram material and overhaul it. I haven't looked into that.
The lever is the same it's just whether or not you need to use a spacer. The later 2f's I believe you do on the F's I don't think you need to. Mine doesn't have a spacer so I don't think i'll need it. Initial thoughs have been to buy the new one and use the new parts to rebuild the old one. I dunno if i'm going that route though. I'll most likely use the new one and use a L bend if needed from the local ace or whatever.
See you on the trail
Couple o' FJ40's, BJ70, PZJ77, UZJ100, TDI