I had hoped with the 3/4 ton chassis under the 66 cab I'd have enough clearance for the Fireball Super Swamper 35s with the five slot rims. Nope. As is, they clear the front wheel openings. Just barely. Doesn't look right though. Gonna need at least a 3/16 block between the axles and springs. Not a big deal, but I kinda dig it with the 16 inch steelies and hubcaps. I'm gonna build another this year with the lift. Thanks all stay safe BobbyT