GM80 coupling rear bearing seat (four laces + internal retaining ring groove) diameter 16.5 internal control 5.7

GR drum connection plate

30 holes on the right side of the header adjustment plate

GR80PRO drum transmission box third gear driving gear (35*30 tooth holes 70 total height 52)

GR80PRO third gear driven gear (30*24)

GR80PRO drum transmission box second axis

Composite sleeve at the connection of GR80 bridge driving bearing seat (outer 90 inner diameter 8.5 height 3.9)

GR80PRO roller transmission box second gear driving gear (35*22 tooth hole 63 total height 49)

GR80 second and third gear shift fork (1210050027)