John Deere 318 - Manual (Page 105)

18. Remove and inspect output shaft assembly.
Inspect output gear (C) for worn or damaged teeth.
Inspect output shaft (B) for wear on splined surfaces.
NOTE: Early models have a FLAT thrust washer. Later
models have a TABBED thrust washer. All
service or replacement thrust washers will have
the tabs.
IMPORTANT: It is recommended to replace the early
model (flat) thrust washers with the One-Speed Differential
later model (tabbed) thrust washers.
The early model washers may spin with
their respective shafts, causing wear to
the case bearing surface.
19. Remove and inspect thrust washer (A) for wear or
damage.
Two-Speed Differential
M36177
-UN
-29AUG88
M36237
-UN
-22NOV89
MX,15905015,12 -19-23FEB95
Differential/Disassemble and Inspect
TM1590 (17MAY95)
50-15-9
316, 318 & 420 Lawn and Garden Tractors
020895
50
15
9