Remove the mainshaft assembly from vise. Align the missing internal spline of 3rd-4th speed slid- ing clutch with key in mainshaft and install on front of shaft, engaging the external splines of sliding clutch with clutching teeth of 3rd speed (or Overdrive) gear.
Move the pilot-end of mainshaft into pocket bush- ing of input shaft.
29. Block the right countershaft assembly against case wall and lower the mainshaft assembly into position with the reverse gear held against LO speed gear and rear of shaft moved into case bore.