front end upgrade

[evan396]

my dad and i want to upgrade the front end of our 66 k20 to disk brakes. we got a newer front end from his cousin, and we are going to reuse the eaton rear. we want to know if we can switch out the gears from the the old one to the newer one,to keep the same gear ratio. ( if the gears are ok). and if we can do it. if not, can we get a gear set to match the rear. also would this be a good front end to use? thanks evan396