who knows there sh1t

ok i been reading and reading and cant find shit out really...
1/2 ,3/4 ,1 ton whats the messurments and what will interchage on what,what spring perches are different

will 3/4 fit a dually rear end?

I'm a welth of info

but I'm going to bed

lockone should be able to give more detailed measurement .. but you should be able to just put the rearend uder a 3/4 ton

matters what you want. If you are bagged and want to run semi's you need to link it and run a dually rear from a cab-chassis truck in the 44-46" range. That is unless you pay extra for the special offset semi wheels (townastys). Then you can useally get by with a normal rear. Unless it is a wide track rear.