i guess they rub on the quarter lip...
weird. 245/50s are fairly short tires on a 16" rim.

anyway, cheap...

rear shackle extensions

2ndgen front shackle braces (about 1/2-1" lift according to others)

leaf helper spring... truck style load helper.

It just seems strange to me. my rear leafs are still way too high after several years. 255/60/15 (about 1/2" taller radius than yours), cheap shocks... 11"@rocker. no prob with passengers last time i had them.