Inspect:
1. the travel distance of the steering
2. whether the chassis is twisted (a result when the motor case does not fit the motor plates)
3. the springs (older springs are softer and shorter)
4. the top covers (do they get old or tweaked? Do they fit the chassis if they are hop ups?)
5. the width of the shims you use to adjust the ride height
6. whether the body shell tweaks the chassis so you might have to readjust the position of the body clips.
7. whether the body shell is too low that it touches the ground or the tires.
8. whether the wheels are firmly installed to the U-joint
9. whether there is too much clearance that the wheels swing too much (when parts get too old)
The list may go on...
