Hi me again I've had a look at the cfg and there is no mention of contact points as it is all about the cameras, there was no actual instal for the carrier but there is a document in the effects folder about anti collision, or something to that effect,excuse the pun,
In the .cfg file, you should have an entry something like this:
[contact_points]
; 0 Class
; 1 Longitudinal Position
; 2 Lateral Position
; 3 Vertical Position
; 4 Impact Damage Threshold
; 5 Brake Map
; 6 Wheel Radius
; 7 Steer Angle
; 8 Static Compression
; 9 Max/Static Compression Ratio
;10 Damping Ratio/Water Rudder Effectiveness
;11 Extension Time
;12 Retraction Time
;13 Sound Type
;14 Airspeed limit for retraction
;15 Airspeed that gear gets damage at
;