Finally figured out a way to keep a loose fitting hardbody on the chassis......Been bugging me for quite a while.

Put a few small dots of "poster tack" on the body mounts. Holds the body nicely, and it's easily removeable and reuseable.

I have a Tyco 440x2 #44 Pontiac Grand Prix that fit really loose on the chassis. So loose that it would turn sideways on the chassis, contacting the tires, and deslotting the car. Only took a couple of laps, sometimes much less before the car deslotted. I like the body quite a bit, but it didn't get run very much because of this annoying habit. It also works on JL Nascar bodies on SG+ chassis........

Feel free to add random tips of your own....

Goop (or is it Goo?) works also...

Hot water from the faucet works well. Get a cup full, dip the loose-fitting body, let it sit for a minute. This will make the body soft.....then gently squeeze the sides of the body, and while squeezing it, run it under cold water. That will 'freeze' the body, and it will have a tighter fit on the chassis.

Do not use boiling water, that would warp the body.

Good stuff!