Mainshaft Assembly

1. Install drive sprocket on mainshaft.





2. Install brass stop ring on drive sprocket.
3. Install 3 synchro struts and 2 springs in hub as follows:





a. Insert first strut in hub. Strut shoulders rest (and slide) on sides hub slot as shown.





b. Insert hooked end of first spring in center of strut to secure it. Then work spring into hub.





c. Press spring inward and insert last two struts in hub slots. Be sure spring is positioned under struts to properly secure them.
d. Turn hub over and install remaining spring in hub. Position hooked end of second spring 180° away from first spring end.





4. Install assembled synchro hub on mainshaft. Hub has shoulder on one side which goes toward sprocket (rear of shaft). Flat side of hub faces front of shaft.





5. Install synchro hub retaining ring. Be sure ring is fully seated before proceeding.





6. Install sliding clutch (sleeve) on synchro hub.





CAUTION: The sliding clutch must be correctly positioned to ensure proper shifting. Position the clutch on the hub so a clutch spline is centered over each strut as shown. If the clutch is installed so a gap between splines is aligned with one or more struts, gear clash will result.