it might be better to ask where arn't they prone to tin worm mate....lol

check the inner and outer sills as best you can, rear spring mounts/chassis rails, floor to sills, front chassis rails behind the front struts, front floor, inner wings under the bonnet and under the wheel arch. afew XR4is and 4x4s have gone in all these places so just take you time and inspect carfully and if you can get it on a ramp

if its been looked after and low milage it should be quite good tho mate

cheeRS nick