Taking "all what stuff off"? There is nothing to take off except the old belt. On the Front Mount Distributor w/ OEM 6V POS/GRN setup, loosen generator belt tensioner arm, p/n 8N-10145, then loosen the generator mounting/pivot bolt, slacken the genny so fan belt slips off pulley, then gently relax the unit down. Slip the fan belt off the crank pulley. At this point you can work the old belt around the fan blade or cut it with good tin snips -you don't need it anymore so why do you care if you cut it? Work the new fan belt around the blade; the fan blade spins easy when not under load on crank pulley. Once all blades are over belt and water pump, work belt onto crank pulley then position over generator pulley. Test to see belt is fully on the pulleys. Using a pipe, pry bar, or crowbar, apply tension on the genny body and manifold so belt tightens as op manual shows and tighten mounting/pivot bolt. Lastly, before you forget, tighten the belt tensioner arm so it stays in place. The fan belt must maintain proper tension so generator can work correctly and thus charge the battery, otherwise you are flogging a dead horse. The steps are the same if you have the angle mount distributor except tensioner is different on the RH side. If you have a 12V switch out job and alternator, be sure you have the correct fan belt -the OEM belt used on the generator is different. The alternator also needs a belt tension device as well. Belt Tensioners are often neglected on both generators and alternators. The tension arms used on either the front mount or angle mount generators will not work on an alternator. Alternator belt tension brackets are usually included in the 12V kits sold by quality parts suppliers -it matters where you buy from. I have a few OEM 8N-10145 belt tension arms used on the 6V generator if anyone needs one. You don't get one with a new aftermarket 8N generator.
FORD 8N TRACTOR -48/50 GENERATOR BELT TENSION ARM 8N-10145:
*Used only on early 8N generator with the front mount distributor.