Its a ton of work. You have to change all the linkage, bellhousing, flywheel, shiftier, sometimes you have to change the rear end ratio because oftentimes its not the same as the auto, you also have to get a new driveshaft. If you have the time and can do it yourself its so worth it though in my opinion. all it takes is some time and decently deep pockets for the new parts. If you dont want to go that route you can get a shift kit for your atuo. Not the same but it helps get the feeling of banging your own gears.