Front Rear Shock Absorber Strut Mount Kit for Mitsubishi Challenger PB Bilstein M 7100 Custom fit Shocks Set 2 of (AK7110R) 10" Travel 25.77 BILSTEIN M 7100 and M 7100 Classic BILSTEIN Off Road BILSTEIN M 7100 and M 7100 Classic BILSTEIN Off Road Set 4 Front Strut Rear Shock Absorber For 2011 2020 Dodge. Bilstein M 7100 Classic shock absorbers are the most successful shock absorbers in off road racing history. Since their inception in the early 70's, these 46mm monotube shock absorbers are equipped on more winning off road cars and trucks than any other shock absorber. Today, the M 7100 Classic shock absorbers are perfect for meeting the demands of vintage off road race cars and VW based off road recreational vehicles. Withstanding the test of time, the M 7100 Classic shock absorber will deliver period correct performance. Details: Series: M 7100 Classic Internal Design: Monotube Lower Mount Type: 12mm Heim Upper Mount Type: Stem Finish: Nickel Plated with Clear Powder Coat Body Design: Smooth Body (Non Coilover) Collapsed Length Inch: 12. 15 Compression at 52m s: 1150 Extended Length Inch: 18. 74 Mount Type: Stem to Eye Pistion Diameter: 46mm Rebound at 52m s: 2200 Reservior: No Shaft Diameter mm: 11 Stroke Travel Length In: 6. 59 Stroke Travel Length In: 167. 4 Warranty: 90 Day Warranty