Purchased these as replacement for my OEM leveling arms due to one breaking. These are a PERFECT fit and I believe an upgrade over the OEM parts. These are definitely heavier and the difference in the way the turnbuckle is made I believe will eliminate the breakage issue of the original parts. These also cost about 50% of what the local Kubota dealer wanted for OEM pieces.
Purchased lift-arm assembly set for Kubota B7800. Received reasonably fast and it fitted just as needed, as original became badly bent.
The only con comment would be that UPS tracking # should be provided in your email confirmation.
Very satisfactory transaction experience.