You should work for [AFFILIATE=1, nofollow=true, newwindow=true, title="Kubota"]Kubota[/AFFILIATE] as an engineer!!! AWESOME work and quality. Was glad to help someone with your talent.
On the front wee ware planing to mount the trailer why ? Because mounting the backhoe is a litle bit tricky it req. Some time to do it so we plan to have backhoe on the back and to load trailer and just connect trailer when you need to drive and empty it.
We run the steel bar around the tractor 2.5 cm it is i think 1 inch 2.5 cm x 6 cm you can see it on the pictures up. That come because the link that somebody sent of some man riping off his back diferencial with backhoe ware scared us a lot so now everything is stifer and safer to connect...
On the picture that i attached u can seethat now wee have "6 arms " and 2 toplinks 2 on the botoom that are free to move up and down above we have the 2 original hidraulic of tractor whic are hidraulyc powered and on the top we have again 2 arms that are free to move up and down right belowe the there are 2 top links that are tighten by the hand to stiff complet tractor and backhoe together..
PS: on the picture there are no 2 toplinks my bade they are not mounted but we have them
One more time thanks to everybody for all help and thing that you are share with us..