(Optional Kit p/n
	1639-017
	Low Alt.;
	1639-018
	High Alt.)
1	0602-985
	Cover, Dropcase
2	0602-452
	Sprocket, 23T
3	0602-444
	Sprocket, 19T (Over 5,000 ft Alt.)
3	0123-641
	Washer, Fiber
4	0623-293
	Plug
5	0602-012
	Spacer, Shaft
6	0602-135
	Extension, Driveshaft
7	0702-048
	Gear, Reverse-55T (inc. 8-10)
8	0602-023
	³ Washer, Thrust
9	0602-022
	³ Bearing, Thrust
10	0602-024
	³ Ring, Retaining
11	0602-028
	Spring, Return
12	0602-783
	Retainer, Shaft Extension
13	0623-081
	Screw, Self-Tapping
14	0602-205
	Bearing, Caged
15	0602-450
	Chain, 72P
15	0602-449
	Chain, 70P (Over 5,000 ft Alt.)
16	0602-872
	Shaft, Reverse
17	0702-321
	Idler, Reverse Assembly-19T (inc. one No. 18)
18	0602-018
	³ Bearing
19	0602-215
	Spacer, Reverse Idler
20	8050-242
	Washer
21	8002-130
	Screw, Cap
22	0602-900
	Bracket, Chain Backing
22	0602-466
	Bracket, Chain Backing (Over 5,000 ft Alt.)
23	0602-085
	Fork, Shift
24	0702-350
	Shaft, Shift Fork
25	0602-479
	Plug, Drain
26	0602-021
	Seal, O-Ring
27	0623-542
	Pin, Roll
28	0602-483
	Stick, Oil Level
29	0602-366
	Aligner, Idler
30	0670-183
	O-Ring, Oil Stick
31	0702-187
	Sprocket Assembly, 40T (inc. 32-38)
31	0702-170
	Sprocket Assembly, 39T (inc. 32-38)(Over 5,000 ft Alt.)
32	0602-016
	³ Bearing
33	0123-430
	³ Nut
34	0623-182
	³ Screw, Cap
35	0602-138
	³ Spring, Compression
36	0602-133
	³ Pin, Slip
37	0602-144
	³ Retainer, Spring
38	N/A
	³ Sprocket
39	0602-899
	Sprocket, Idler-22T
39	0602-871
	Sprocket, Idler Reverse-24T (Over 5,000 ft Alt.)
40	0602-112
	Cover, Oil Vent