Ref.

  P/N
  S-DRIVE UNIT
DESCRIPTION
1      S-drive unit 110S, ratio 2.15:1
2      Upper gear unit, see Upper Gear Unit S-drive Unit 110S, See Section - 2-J17
3   851485-3   Lower gear unit, see Lower Gear Unit S-drive Unit 110S, See Section - 2-J21
-   876397-1   Gasket kit, see group 10