TRANSMISSION — Mainshaft and Countershaft Parts (parts list + disassembly notes)

J-17parts diagram

M/T

Mainshaft and Countershaft Parts (parts list)

Parts DiagramFig. page-0348 fig1

#	Part Name	Notes
1	Snap ring	—
2	Washer	—
3	Retaining ring	—
4	C-washer	—
5	Mainshaft rear bearing	Disassembly Note page J-17; Inspection page J-24
6	Retaining ring	—
7	C-washer	—
8	Thrust lock washer	—
9	Steel ball	—
10	Locknut (Countershaft)	Disassembly Note page J-17
11	Countershaft rear bearing	Disassembly Note page J-18; Inspection page J-24
12	Counter 5th gear	Inspection page J-23
13	Spacer	—
14	5th gear	Inspection page J-23
15	Synchronizer ring (5th)	Inspection page J-24
16	Locknut (Mainshaft)	Disassembly Note page J-18
17	Clutch hub assembly (5th/Reverse)	Inspection page J-23
18	Synchronizer ring (Reverse)	Inspection page J-24
19	Reverse gear	Inspection page J-23
20	Needle bearing	Inspection page J-24
21	Inner race	—
22	Washer	—
23	Counter reverse gear	Inspection page J-23
24	Main drive gear bearing	Disassembly Note page J-18; Inspection page J-24
25	Snap ring	—
26	Countershaft front bearing	Disassembly Note page J-18; Inspection page J-24
27	Bearing housing assembly	Disassembly Note page J-18; Disassembly page J-20
28	Mainshaft gear assembly	—
29	Main drive gear	Inspection page J-23
30	Synchronizer ring (4th)	Inspection page J-24
31	Needle bearing	Inspection page J-24
32	Washer	—
33	Countershaft	Inspection page J-24
34	Synchronizer key spring	—
35	Clutch hub sleeve	—
36	Synchronizer key	—
37	Clutch hub	—

Remove the mainshaft rear bearing with the SST.

1
Shift the clutch hub sleeves to first gear and reverse gear to put the gears in the double-engaged condition.
Do not reuse the locknut.
Do not damage the countershaft.
97U0J1-020
2
Use a suitable tool to uncrimp the tabs of the locknut.
3
Connect the SST to the mainshaft and tighten it securely in a vise.
Use pads in the vise to prevent damaging the SST.
97U0J1-021
4
Remove the locknut.