Rear Ends

Will a 67 Goat rear end fit a 64 goat. Or will the axles gears and P Trac work in my 64s rear end with out changing the whole thing.

yes I believe so

in 68 the book says they went to a 2" wider rear but it will also fit

however there should be no problem 64 to 67 the only difference being
the coil spring mounts may be a little different so if changing springs you may need the model for the rear you are using