look thru this link. Jon converted this one over to 4 x 4 using the orig frame and later springs. you can see how his springs are sitting. no blocks in the frt and just the rear stock 4 x 4 (60-66) riser block in the rear. those 3 spacers on the rear are waiting for something to happen
http://67-72chevytrucks.com/vboard/s...d.php?t=448681
ron