For the front
https://67-72chevytrucks.com/vboard/...d.php?t=444815
You can get 5 lug in the rear a bunch of different ways, the easiest is to find a 71-72 rearend and change it in. I'm assuming you have trailing arms, if you have leaf springs I'm not so sure. You can buy conversion axles also from various places. Or you can use a 73-87 rear axle if you weld on the trailing arm brackets (
https://www.rydmanranch.com/product-...rm-axle-mounts). Or, if you are really ambitious, you can have the axles redrilled for 5 lug (probably the hardest way unless you have a machinists friend).