Not exactly sure about "clevis strap"...Googled it and it looks like a drawbar with a clevis-type end where the implement tongue will attach. Then a pin is dropped through to hook up.
If so, then the one on my
M7040 is a two-piece construction. The regular drawbar has a couple of holes where a Z shaped (except the center line is perpendicular) is bolted on. When I bought the tractor I had to buy the extra Z.
Don't know why Kubota would change the design. Perhaps contact a dealer.
Edit: Found a listing for the part (look down the page a bit). They are expensive.
3545089130 - Discounted all Tractor Parts Catalog