Hydraulic shock absorbers have been in common use for over a century but still produce a lot of enquiries, so here is the Tech Know shock absorber FAQ, from Hendrickson.
Energy Suspension 95.9008 Torque Arm Bushing Install Tool
Shock Absorber FAQ - Power Torque
Shock Absorber FAQ - Power Torque
TONE P150A Manual Torque Multiplier
Power Torque Transmission Filter Kit FK-398
Power Torque 3/8 Inch Drive To 3/8 Inch Impact Wobble U-Joint GM9088
Energy Suspension 90.7005 Torque Rod Bushings
Torque Rod Bushings
Energy Suspension 3-1107R: Transfer Case Torque Mount Bushings 1961-78 Chevy Blazer, Suburban & GMC Jimmy - JEGS
2.1101, Torque Arm Bushings, Jeep CJ5 73-83
MGF-TF 1996-2005 - Rear shock Absorbers / Dampers