ive looked at a few vendor sites but havent had any luck yet. im looking to see if i can lower my 72 3/4 ton a few inches front and rear while still keeping the heavy dutyness (new word

). its coils front and rear. anyone done this? also ive been looking for custom wheels and finding only in 16 inch. does anyone have any experience here? all 3/4 ton wheels are 16 inch (or larger)? thanks