Remove C-ring holder and then remove mainshaft C-ring.
Press out mainshaft rear bearing, 6th main gear adjusting shim, and 6th main gear using Tool and a puller.
Tool number : ST33052000 ( - )
Remove 5th-6th mainshaft spacer.
Press out 4th main gear and 5th main gear using Tool and a puller.
Tool number : ST33052000 ( - )
Remove 4th main gear adjusting shim.
Remove 3rd-4th mainshaft spacer.
Press out 3rd main gear and 2nd main gear using Tool (A) and a puller (B).
Tool number : KV40105020 ( - )
Remove 2nd needle bearing.
Press out 2nd main gear bushing, 1st-2nd synchronizer hub assembly, 1st main gear, 1st needle bearing, 1st main gear bushing, and reverse main gear using Tool (A).