Truck Facts
The International Harvester R-Series Transmissions
(Source: International Light Duty Trucks, International Harvester Co., Publication CR-485-C)
A choice of 4 transmissions to match truck to job
No matter what your light-duty truck operation may be, there's an International transmission geared to meet your requirements. This means: --
- Fuel Savings. The transmission that's geared right for your job provides proper gear ratios to satisfy operating needs. These ratios permit the engine to operate within its most economical range.
- Longer transmission life. The transmission that's geared right for your job has sufficient stamina, ruggedness, torque capacity to give maximum service with a minimum of maintenance.
- Better all- 'round truck performance. The transmission that's geared right for your job works efficiently with the engine and axle toward the common goal of doing a better job at lower cost.
To step up the efficiency of your particular hauling operation, choose the transmission that best meets all your requirements.



The T-98 4-Speed Transmission

| 1. Main drive gear bearing retainer. | 29. Clutch hub, 1st and 2nd speed. |
| 2. Snap ring. | 30. Mainshaft rear bearing retainer. |
| 3. Main drive gear bearing. | 31. Mainshaft rear bearing. |
| 4. Snap ring. | 32. Rear bearing retainer seal. |
| 5. Main drive gear. | 33. Mainshaft flange nut. |
| 6. Synchronizer blocking ring. | 34. Mainshaft. |
| 7. Shifting plate. | 35. Speedometer drive gear. |
| 8. Expansion plug. | 36. Snap ring. |
| 9. Sleeve (3rd and direct). | 37. Countershaft roller bearing. |
| 10. Shift rail. | 38. Countershaft thrust washer, rear. |
| 11. Transmission cover. | 39. Countershaft. |
| 12. Shift fork, (3rd and direct). | 40. Lock plate. |
| 13. Control lever. | 41. Lock plate capscrew. |
| 14. Control housing cap. | 42. Reverse idler shaft. |
| 15. Fulcrum ball. | 43. Reverse idler gear. |
| 16. Control lever spring. | 44. Transmission case. |
| 17. Control lever ball. | 45. Drain plug. |
| 18. Mainshaft 3rd speed gear. | 46. Countershaft bearing spacer. |
| 19. Interlock plunger. | 47. P.T.O. opening. |
| 20. Poppet spring. | 48. Countershaft gear cluster. |
| 21. Poppet ball. | 49. 2nd speed gear bearing spacer. |
| 22. Mainshaft 2nd speed gear. | 50. 2nd speed gear roller bearing. |
| 23. Synchronizer blocking ring. | 51. Countershaft thrust washer, front. |
| 24. Mainshaft 1st and 2nd speed gear. | 52. Countershaft roller bearing. |
| 25. Shift fork, 1st and 2nd speed. | 53. 2nd speed gear thrust washer. |
| 26. Poppet ball. | 54. Snap ring. |
| 27. Expansion plug. | 55. Clutch hub, 3rd and direct. |
| 28. Poppet spring. | 56. Mainshaft pilot bearing. |
