Hey there, Ive got a RV tarago van. I want raise it a couple of inches, and wondering if there is any other model spring and shocks, (etc. holden,ford,Nissan springs,shocks) that fit this tarago, all larger wheels, do holden hubs fit to run larger wheels as this is only 4stud. there must be someone out there who has dune a conversion. any help or any other conversions would be appreciated. :D ;)