First A-833 rebuild, what to look for?

All seals and O-rings, small parts package. All bearings and rear bushing. New countershaft and steel shift forks. Check input shaft and main shaft for straightness. Check ends of cluster gear for roughness and or wear. Housings for stripped threads and worn or damaged surfaces (bosses where the cluster gear washers go, snap ring grooves, bearing and bushing surfaces). Check gears for excessive wear and synchronizer teeth damage.