500-010 rear axle differential
code letter:
ETR,ETS,HWC,, GDF
500-011 rear axle differential
HUN,HUP
500-012 rear axle differential
HNL,HNP
501-010 drive shaft
rear
quattro+, BFB,BKN,AUK,, BBK,ASB
505-000 support frame
505-002 rear axle, panhard rod
505-005 wishbone, wheel bearing housing
PR-1BA,1BE,, 1BV,1SA,1SB
505-006 wishbone, wheel bearing housing
PR-1BD
511-000 suspension, anti-roll bar, shock absorbers
521-010 cardan shaft
525-020 rear axle housing
ETR,ETS,GDF,, HWC
525-021 rear axle housing, flanged shaft
HUP,HUN
525-025 rear axle housing, flanged shaft
525-030 differential