has anyone ever swapped guts out from a 70 powerlock into a 60? I was told they will work but I have not tried it. Also does anyone have these powerlock side gears and a ring spacer for a 60. they are 4.10s now, but will be going 4.56s I need the 35 spline parts and spacer. IT'S A 1 TON THING.... IF I HAVE TO EXPLAIN IT, YOU WOULDN'T UNDERSTAND!!!