MUNCIE 4 (117MM) Speed

Assembly






1. Lower the counter gear into the case until it rests on the bottom of case.
2. Place reverse idler gear in transmission case with gear teeth toward the front. Install idler gear shaft from rear to front, being careful to have slot in end of shaft in facing down. Shaft slot face must be at least flush with case.






3. Install mainshaft assembly into case with rear of shaft protruding out rear bearing hole in case. Position tool J-22874 in clutch gear case opening and engaging front mainshaft. Rotate case onto front end. Install 1st speed gear thrust washer on shaft, if not previously installed.






4. Install snap ring on bearing O.D. and position rear mainshaft bearing on shaft. Using tool J-22874-1 drive bearing onto shaft and into case. Rotate case and remove tool J-22874-1.
5. Install synchronizer cone on pilot end of mainshaft and slide rearward to clutch hub. Make sure three cut out sections of 4th speed synchronizer cone align with three clutch keys in clutch assembly.
6. Install snap ring on drive gear bearing O.D. Index cut out portion of drive gear teeth to obtain clearance over countershaft drive gear teeth, and install clutch gear assembly onto case. Raise mainshaft to get clutch gear started and tap bearing outer race with plastic tip hammer.
7. Install drive gear bearing retainer using a new gasket, install bolts and torque to specifications.






8. Install appropriate toll in countergear front bearing opening in case to support counter gear and rotate case into front end.






9. Install snap ring on countergear rear bearing O.D. position, bearing on countergear and using tool J-22874-1, drive bearing into place. Rotate case, install snap ring on the countershaft at rear bearing and then remove tool J-22874-1.
10. Tap countergear front bearing assembly into case.
11. Install countergear front bearing cap and new gasket. Torque to specifications.
12. Slide speedometer drive gear over mainshaft to bearing.






13. Install rear bearing retainer with new gasket. Be sure snap ring ends are in lube slot and torque to specifications. Install brake backing plate assembly on models equipped with propeller shaft brake. On models equipped with 4-wheel drive, install rear locking nut and washer using tool J-23070. Torque lock nut to specifications and bend washer tangs to fit slot in nut.
14. Install parking brake drum and/or universal joint flange. Apply light coat of oil to seal surface.
15. Lock transmission in two gears at once. Install universal joint flange locknut and torque to specifications.