1.88:1 and 1.91:1 Reduction Units - Current Production
INDEX PART DESCRIPTION QTY
NO. NUMBER
  NO NUMBER REDUCTION UNIT ASSEMBLY (1.91:1 )  
  NO NUMBER REDUCTION UNIT ASSEMBLY (1.88:1 )  
1 179864 . HEX HEAD BOLT (7/16-14 X 1-3/4) 2
2 103322 . LOCKWASHER (7/16) 2
3 179840 . HEX HEAD BOLT (3/8-18 X 1-1/8) 6
4 103321 . LOCKWASHER (3/8) 6
5 10-00-149-034 . COUPLING NUT 1
6 10-00-031-001 . COUPLING 1
7 4756D . SNAP RING 1
8 10-17-171-002 . MAIN SHAFT (1.91:1 ONLY), NO LONGER SUPPLIED 1
8A 10-17-171-004 . MAIN SHAFT (1.88:1 ONLY) 1
9 L3-6 . RING GEAR (1.91:1 ONLY) 1
9A 10-17-162-001 . RING GEAR (1.88:1 ONLY) 1
10 NO NUMBER . BEARING ASSEMBL Y 1
11 10-00-133-010 ..BEARING CONE * 1
12 10-00-133-009 ..BEARING CUP * 1
13 10-17-053-002 . SOLID SPACER (.820-.821 INCH LONG)* * 1
13A 10-17-053-003 . SOLID SPACER (.829-.830 INCH LONG)* * 1
13B 10-17-053-004 . SOLID SPACER (.832-.833 INCH LONG)* * 1
13C 10-17-053-005 . SOLID SPACER (.835-.836 INCH LONG)* * 1
13D 10-17-053-006 . SOLID SPACER (.838-.839 INCH LONG)* * 1
13E 10-17-053-007 . SOLID SPACER (.841-.842 INCH LONG)* * 1
13F 10-17-053-008 . SOLID SPACER (.844-.845 INCH LONG)* * 1
13G 10-17-053-009 . SOLID SPACER (.847-.848 INCH LONG)* * 1
13H 10-17-053-010 . SOLID SPACER (.850-.851 INCH LONG)* * 1
131 10-17-053-011 . SOLID SPACER (.853-.854 INCH LONG)* * 1
13J 10-17-053-012 . SOLID SPACER (.856-.857 INCH LONG)* * 1
14 10-00-044-017 . OIL SEAL 1
15 NO NUMBER . BEARING ASSEMBLY 1
16 10-00-133-002 ..BEARING CONE * 1
17 10-00-133-001 ..BEARING CUP * 1
18 10-17-065-003 . REDUCTION HOUSING 1
19 4734 . SNAP RING 1
20 L7-104 . SUN GEAR (1.91:1 ONLY) 1
20A 10-17-165-004 . SUN GEAR (1.88:1 ONLY) 1
21 4853B . LOCK BOLT (5/16-18 X 3/4) 6
22 114605 . LOCKWASHER (5/16) (1.88:1 ONLY) 6
23 10-00-014-002 . LOCK PLATE (1.91:1 ONLY), NO LONGER SUPPLIED 3
24 L9-A 150 . PINION CARRIER ASSEMBLY 1
      (1.91:1 ONLY), NO LONGER SUPPLIED  
24A 10-17-659-021 . PINION CARRIER ASSEMBLY (1.88:1 ONLY) 1
25 4827 ..RETAINING RING 1
26 4717L ..PINION SHAFT PIN 6
27 L5-39 ..PINION SHAFT 6
28 L3-43 ..PINION THRUSTWASHER 12
29 4741 A  ..ROLLER BEARING (1.91:1 ONLY) 288
29A 10-00-131-011 ..ROLLER BEARING (1.88:1 ONLY) 288
30 L3-41 ..PINION BEARING SPACER (1.91:1 ONLY) 18
30A 10-00-053-024 ..PINION BEARING SPACER (1.88:1 ONLY) 18
31 L4-5 ..PINION GEAR (1.91:1 ONLY) 6
31A 10-17-163-002 ..PINION GEAR (1.88:1 ONLY) 6
32 L9-150 ..PLANETARY CAGE (1.91:1 ONLY), 1
      NO LONGER SUPPLIED  
32A 10-17-159-011 ..PLANETARY CAGE (1.88:1 ONLY) 1
33 10-17-045-001 . PINION CARRIER GASKET (1.91:1 ONLY) 1
34 L9-99 . LUBE OIL STRAINER (1.91:1 ONLY), 1
      NO LONGER SUPPLIED  
35 10-00-141-149 . O-RING (1.91:1 ONL Y) 1
36 L4-146 . REAR ADAPTER GASKET 1
37 10-00-183-073 . LOCK BOLT (7/16-14 X 7/8) 6
38 103322 . LOCKWASHER (7/16) 6
39 L9-8A . REDUCTION UNIT ADAPTER * * * (1.91 :1 ONLY), 1
      NO LONGER SUPPLIED  
39A 10-17-172-001 . REDUCTION UNIT ADAPTER * * * * 1
40 4816 . SNAP RING 1
41 10-00-130-018 . BEARING 1
42 L4-145 . FRONT ADAPTERGASKET 1
 
*          REPLACE BOTH PARTS IF ONE IS DAMAGED.
* *       SELECT CORRECT SIZE SPACER AT ASSEMBLY. ONLY ONE REQUIRED.
* * *     FOR USE WITH 1.91:1 NOISE REDUCTION PARTS. THESE INCLUDE LOCK PLATES (23),
            PINION CARRIER GASKET (33), AND O-RING (35).
* * * *  FOR USE WITH 1.88:1 OR 1.91:1 WITHOUT NOISE REDUCTION PARTS.
 
 
1.91:1 Reduction Units - Early Production
INDEX PART DESCRIPTION QTY
NO. NUMBER
  NO NUMBER REDUCTION UNIT (1.91:1 ONLY)  
1 4775L . COUPLING UNIT 1
2 4547AY . COUPLING (72C ONLY) 1
2B 4547BA . COUPLING (71 C ONLY) 1
3 0000179860 . HEX HEAD BOLT (7/16-14 X 1-1/4) 6
4 0000103322 . LOCKWASHER (7/16) 6
5 L4-7 . BEARING RETAINER (1.91:1 ONLY), 1
      NO LONGER SUPPLIED  
6 L4-147 . BEARING RETAINER GASKET 1
7 71C-110 . OIL SEAL 1
8 4920A . BEARING 1
9 L5-A2 . MAIN SHAFT (1.91:1 ONLY), NO LONGER SUPPLIED 1
10 L5-1 A . REDUCTION HOUSING (1.91:1 ONLY), 1
      NO LONGER SUPPLIED  
NOTE: These early production parts are not interchangeable with current production parts