yea ya gotta thread lock the set screws on the mip cvd's .. the fuel tank screws go into plastic so there should be no reason that they should come lose, unless you have a xtreme amout of chassis flex. LOL my 9 year old runs a rusty for a basher/play truck and he could tear up a anvil, no joke, but he really does haver a hard time killing the rusty.i run integy shocks on my race trucks ..BUT NOT ON A BASHER, they will snap the ball ends off and theyre a bit hard to get ... on my sons rusty he runs associated fatory team shocks off his T4FT, it has integy on it - but its his race truck.