Did you make your own block's? They are just not one that i have seen before. The blocks we put in my fella's GU Patrol are 3inch cilender solid blocks and yours are opened. Silly question that would be because one the Patrols weigh a mear 2 ton and the suzzies a little under a ton if stock. I do not know much about these little 4WD's but that is why i am on here.
Thank's for the help
                Mandy-Lea
Open blocks are commonly used on Vits, they need to be a good wall thickness. Solid blocks can be used but the Vit has studs on the body so a sleeve nut or threaded block is needed. Three inch blocks are usual with open blocks, solid blocks are 2 or 3 inches. 3" lift requires modifications to gear and tcase levers. Have a look at the Calmini and Rocky Road websites they have pics of theirs.
Send CJ a PM, he has done quite a few mods to his truck and is also from Melbourne .