| BIG TWIN: 4 SPEED TRANSMISSION MAINSHAFTS & COUNTERSHAFTS |
| TRANSMISSION MAINSHAFTS |
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| TEC # | Andrews | Years | Replaces | ||
| 84464 | 208500 | 1937-1964 | early | 35040-50 | |
| 84465 | 208650 | 1965-1969 | mid | 35039-65 | |
| 84470 | 208700 | 1970-1985 chain | late | 35039-70A | |
| 84471 | 208800 | Late 1984-'86 belt drive | late | 35039-85 | |
| Replacement mainshafts for all versions of big twin boxes. Made from aircraft alloy steel. Heat treated and finish ground to ensure maximum durability. | |||||
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TRANSMISSION COUNTERSHAFTS |
Picture to come |
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| TEC # | Andrews | Years | Replaces | |
| 84465 | 207650 | 1941-early '76 | 35614-65 | |
| 84470 | 207770 | 1976-79 | 35614-77 | |
| 84471 | 207800 | 1980-85 | 35614-80 | |
| Three types of countershafts fit transmissions thru 1985. They are not interchangeable, so make sure before you order. | ||||
| EVOLUTION 1340: 5 SPEED MAINSHAFTS & COUNTERSHAFTS | ||||
| TEC # | Andrews # | Description | Years | Replaces H/D |
| 84510 | 296800 | chain drive mainshaft, | 1981-1984 | #35042-79 |
| 84512 | 296850 | belt drive mainshaft | 1985-1989 | #35042-85 |
| 84515 | 296900 | belt drive mainshaft | 1990 only | #35042-90 |
| 84516 | 296910 | belt drive mainshaft, | 1991 - up | #35042-91 |
| 84514 | 296700 | countershaft | 1984 - up | #35632-79 |