Old thread, but I was doing the 400 hour on my Kubota
B3350-HSDC and the wife was off visiting her momma and I couldn't talk the Golder Retriever into holding the dumb end of the tape measure to check toe-in. Used a 1/2" diameter fiberglass rod (pretty much any long enough straight edge would work) and secured it to the outside of one wheel at centerline and horizontal to ground, using a bungee cord hooked to rod front and back and passing around inside of wheel - this holds rod snugly while inducing almost no bending moment to rod. A duplicate rod is used on the opposite side. Tape measure hooked to fixed rod and reading taken off second, loose rod held up to other side.
Mine had about 3/8" toe-out, so it was never set up correctly on delivery.
Put penetrating oil (I use 50/50 acetone and ATF) on lock nuts. Securely hold upper socket end of tie rod about mid point of it's rotating range so it doesn't rotate hard against ball as you break lock nut loose (Kubota doesn't need to lock them down as tight as they do!).
When making adjustments, gently snug the lock nut down each side as you do it, as otherwise the center shaft will rotate and "undo" the adjustment you just make when you try to adjust the opposite side. When you are happy, make sure both socket ends are rotated over either for or aft against their ball - the same, so as to preserve their range of motion.