Is there a difference in length? the two shock absorbers in question are the 4.4-2000-2003 sport susp. shock and the 4.8-2004-2006 shock. Last can I use the 4.8 rear shock absorber on a 2001 with rear air suspension if it is shorter in length? Questions before lowering the X and changing components. Thanks

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2001 X5 4.4i WHITE-Loaded like a baby's diaper SOLD