In the Aircraft Config, isn't it the last couple Contact points?
[contact_points]
//0 Class
//1 Longitudinal Position (feet)
//2 Lateral Position (feet)
//3 Vertical Position (feet)
//4 Impact Damage Threshold (Feet Per Minute)
//5 Brake Map (0=None, 1=Left, 2=Right)
//6 Wheel Radius (feet)
//7 Steer Angle (degrees)
//8 Static Compression (feet) (0 if rigid)
//9 Max/Static Compression Ratio
//10 Damping Ratio (0=Undamped, 1=Critically Damped)
//11 Extension Time (seconds)
//12 Retraction Time (seconds)
//13 Sound Type
//14 Airspeed limit for retraction (KIAS)
//15 Airspeed that gear gets damage at (KIAS)
14 and 15, remember it is in knots and 15 should be higher by 10-15 knots or more. And 11 and 12 control the extension and retraction times in seconds (as it shows) so in the cfg see below (bold). So in this example the gear take 5.5 seconds to extend and 5.6 to retract, have 0 knots as the speed limit to retract (this is wrong) and will get damaged at 697 knots (802 mph). So change the numbers, delete the bdp (may not be necessary but won't hurt) and all should be grand.
[contact_points]
max_number_of_points = 11
point.0 = 1, 10.36, 0, -7.14, 1800, 0, 1.41, 90, 0.5, 1.137, 0.9,
5.5, 5.6, 0, 0, 697
point.1 = 1, -2.5, -9.73, -6.44, 2200, 1, 1.88, 0, 0.5, 1.128, 0.85,
5.5, 5.6, 2, 0, 697
point.2 = 1, -2.5, 9.73, -6.44, 2200, 2, 1.88, 0, 0.5, 1.128, 0.85,
5.5, 5.6, 3, 0, 697
point.3 = 2, 18, 0, 0, 55, 0, 0, 0, 0, 0, 0, 0, 0, 4
point.4 = 2, 18, 0, -2.84, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 4
point.5 = 2, -5, 0, -2.04, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 4
point.6 = 2, -34, 0, 2.27, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 4
point.7 = 2, 0, -35, 3.9, 800, 0, 0, 0, 0, 0, 0, 0, 0, 5
point.8 = 2, 0, 35, 3.9, 800, 0, 0, 0, 0, 0, 0, 0, 0, 6
point.9 = 2, 10, -9.73, -1.6, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 4
point.10 = 2, 10, 9.73, -1.6, 3000, 0, 0, 0, 0, 0, 0, 0, 0, 4