Thank a lot for your answers.

About question 1. I tolk about diferencal lock like bouth front weels are lock and bouth rear weals are lock and turn together, NOT only one af them. ???

About question 2. How I understand, i need only longer new rear springs and do some technikal job for front torsion. ???

There are some pictures at this homepage about latvian offroad (TR1 class) (it`s in Latvian but I hope you will understand):

http://www.getaway.lv/modules.php?op...ex&go=4&p=1163

And this is our official offroad page (also in English):

http://www.mazozoli.lv/