I have the newer Deere iMatch with the adjustable top hook. After spending a couple of frustrating hours trying to adapt an older implement to the iMatch, I decided it was time to finally replace those top hook bolts with two clevis pins and hairpin cotters. This will make it much faster and easier to adjust or even remove the top hook.
I noticed LandPride's QH has this feature and I'm hoping someone can advise on the proper pin sizing for the Deere iMatch. The LandPride QH15 specifies "PIN CLEVIS 1/2" X 1" (49/64 USABLE)" in their parts guide. A quick measurement shows this is about right and I can try a little "trial and error" but I'm hoping to avoid multiple trips to the Fastenal store (my normal problem solving methodology).