Made by making a couple of adapters for my engine stand.
The height is fully adjustable with approx 10" swing, for a total of 20" height range. No need to jack the trailer tongue up or down to match a stationary type of stand. Simply rotate the head to the desired height to match the installed drive height, tighten lock bolts. The drive is held on the mount by sliding the long trim ram cyl rod thru, and slipping the 2 steering ram bolts in. No need for nuts, the weight of the drive keeps it all in place. Once the drive is removed, it can be rotated a full 360* if desired. Can also unbolt the mount from the large angle plate and bolt it to a work bench if desired also. I made this for use with my Lathem drive cap, so limited on application w/o modifying the mount. But that's easliy done when the time comes.