i glue my tyres in 4 spots on both sides so i can rip them off the rims again without too much tyre staying behind when i wish to put new tyres on the rims,
upgrades i'd recommend, others may have different views are:
upgraded layshaft which i would get in this kit:
http://thumbsdesigns.com/product/gtb...upgrades-pack/
in that kit you will get 4 x 3mm anti roll bar set screws,
i would use these on the cvd's
replace the pins in the cvd's with the ones in the kit as the standard kit ones snap easily,
put the original grub screw back in the cvd and put a 3mm set screw in the other side of cvd so you have 2 screws pressing up against each other with the pin sandwiched in the middle,
lots i know have done this and never had problems with the cvd's since,
next get the drag link as the kit one seems to flex after a jump and make the steering sloppy out of jumps,
http://thumbsdesigns.com/product/car...ink-version-2/
i would also run the RW racing spur gears, better mesh and machined so better circumfrance, not eggs like the kit ones, lol