Hey Pudding, that has been a long time !!
How does the patch look like ?? A round plate with three bolts ??Above the brake pedal... Have you seen a cabbed UR1
Zetor ??
I think you mean the cover plate where the big pipe is sticked through the bell housing, that carries the cab on cabbed models.
About these tractors, i think they are excellent hillriders, as you can lower the rear portals about 10 cm by turning them more rearwards, the original (factory built) mountain version was built the same way and was called "Horal". The Horal version also came with smaller (and wider) tires and lots of wheel weights.
The old MFWD axle might not be the tightest in turning radius, but is a very solid axle.
The rest of the tractor is the same as our 6718, and that 6718 is just a BEAST... I have driven a Kuhn 2.30 meter rotovator with it. I hired it from a dealer, he said i was going to need 140 hp to pull it at full depth, especially in the mud... But the 6718 pulled it through the mud at full depth, 1800 rpm in 1st gear low...
These tractors are faultless. Nothing to worry about, if i could lay my hands on a 6745 or 6748....
Just make sure that the patch is from the missing cab support....