shifter linkage leak

I am in the process of resealing the reverse shift lever( the lowest lever)and all the others, you have to remove the side cover, reverse idler shaft and gear, but to remove the reverse idler the tail shaft housing has to come off. It is actually pretty easy! I removed the tailshaft housing with the main shaft still attached so I could replace the synchros. you can do it! Get a manual for your car and it is pretty detailed! Jared