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(1) - Require replacement of units where dents restrict shock or strut piston rod movement. If dents don’t restrict movement, no service is suggested or required. Especially critical on mono-tube shocks. (2) - This condition can lead to damage of the piston rod, which, in turn, causes premature piston rod seal wear. (3) - Only required if replacing cartridge. (4) - CAUTION: If the strut cartridge has been replaced previously, the oil on the strut housing may be filler oil. The technician must identify the source of the oil. (5) - If noise is isolated to shock or strut, suggest replacement. (6) - Although shocks or struts may have contributed to tire cupping, an inspection is needed of the entire suspension system. If the shock or strut is found to be contributing to the tire cupping, require replacement. SPINDLES SPINDLE INSPECTION Condition Code Procedure Attaching hardware broken ................. A ... Require replacement of broken part. Attaching hardware loose .................. A ... Require repair or replacement of loose part. Attaching hardware missing ................ C .. Require replacement of missing part. Attaching hardware threads damaged ........ A ... Require repair or replacement of part with damaged threads. Attaching hardware threads stripped (threads missing) ...... A ..... Require replacement of part with stripped threads. Bent .................... B ............ Require replacement. Broken .................. A ............ Require replacement. Race seat area undersized ............. B ............ Require replacement. Scored .................. A .. Require repair or replacement. Threads damaged ......... A .. Require repair or replacement. Threads stripped (threads missing) ............... A ............ Require replacement. SPRINGS - COIL, LEAF AND TORSION BAR When springs are replaced, it is suggested, but not required, that both springs on an axle be replaced to maintain equal height from side to side and to provide a balanced ride and proper handling. When variable rate springs are installed in place of conventional coil springs, they must be installed in axle sets to ensure proper handling, uniform ride, and proper chassis height. Erroneous height measurements may result from: improper tire inflation, non-standard tire or wheel size, and heavy load in vehicle or trunk. SPRING (COIL, LEAF AND TORSION BAR) INSPECTION |