Hotchkis or Bilstein shocks

Hotchkis fox shocks

Front - collapsed 9.05" extended 14.3”
Rear - collapsed 14.15" extended 22.5”


Price: $550.00
Qty:1
SKU: 79020015
Application Guide:
73-76 Plymouth Valiant
67-72 Plymouth Valiant
71-72 Plymouth Scamp
73-76 Plymouth Scamp
73-76 Plymouth Duster
70-72 Plymouth Duster
67-69 Plymouth Barracuda
70-74 Dodge Challenger
71-72 Dodge Demon
73-76 Dodge Dart Sport
73-76 Dodge Dart
67-72 Dodge Dart
63-66 Dodge Dart
64-66 Plymouth Barracuda
63-66 Plymouth Valiant


If you want to compare your shocks to the hotchkis park you car on a level surface with all tires on the ground and the car sitting naturally. Measure the distance on rear shocks from center eyelet to center eyelet and on front from center of bottom bushing to bottom side of the bottom cup towards the top. That measurement is the distance of your shocks at ride height. Compare that to the above measurements to see how much travel of extension and compression that will be available. Next on rear measure from your frame to bump stop on axle. Take that measurement and subtract it from your previous measurement of the shock at ride height. That would be the most collapsed point or lowest point for your shocks. So if your shocks ride height measurement on the rear was 18 and you have a 3.5" distance from frame to rear axle bump stop, the lowest or most collapsed your shock would be when suspension is compressed and resting against the bump stop would be 14.5". Collapsed length on rear hotchkis shocks for the above applications is 14.15, so when rear suspension is bottomed out at lowest point you will still have .35" of shock travel left, in other words shock wouldnt hard bottom causing damage to the shocks. Now extention would play more of a role in 4wd but in a car application ext is somewhat irrelevant as long as you have 2-3" of extension travel from ride height length that should be plenty. Same procedure on front, measure ride height shock distance then measure from Lower bump stop to frame. Subtract the measurement from lower bump stop to frame from the measurement of the front shock at ride height. That is the lowest or most compressed length of your front shocks so if your front shock ride heigth measurement was 11.5 or 12" and your measurement from Lower bump stop to frame was 2" inches then the lowest your shocks would be when front suspension is fully compressed would be 9.5-10" and the hotchkis front shocks are 9.05 collapsed so you would have an extra .5" to 1" of shock compression length after front suspension was fully compressed. Or no chance for a hard bottom. Now same on extension up front as on rear, being that extension is moslty important for off road but you should have at least 2-3" of extension length from ride height on the front but a good rule of thumb is to have close to the same travel from ride height to fully compressed and from ride height to extended
So if using the measurements from above if you have 3.5-4 inches of travel before compressed on the rear you should have about 3.5-4 inches available for travel on extension and same on front. If you have 2" of travel on compression on the front you should have about 2 " of travel available on extension. But this procedure is more than adequate for street applications but other factors come into play if using car for autocross, drag racing or circuit racing hope this helps