Scampin!!!!!!

One Thing I want to get accomplished over this winter is to get my 4 speed working perfectly. Currently over this summer anytime I would throw her into 4th she would make these really loud noises making it sound like it was gunna blow up. So naturally u stayed out of 4th. But now after installing my 391's I need the extra gear. Im not sure what the deal is but hoping it will be an easy fix. Also My shifter has about 6 inches of throw before i actually start to shift from gear to gear. She feels way to loose. Ive done a little hw on a rebuild kit but it seems like hurst doesnt sell them. Can anyone point me in the right direction with this?