Nissan Hardbody Question

Do you need to put 4x4 fenders to lay on 18" titan wheels?

yes

No the only reason for 4x4 fenders is for turning and you can run a higher offset wheel. I'm pretty sure the Titan wheels aren't that high of an offset

IF U PLAN ON LAYING ON TITAN WHEELS. THEN YES U NEED 4X4 FENDERS AND TO FLARE YOU BED A LIL. YOU NEED A +35 OR BETTER OFFSET ON NISSANS TO TUCK ON STOCK SHEETMETAL ON A 8 INCH WIDE WHEEL. BUT THE TITANS ARE ONLY A +22 OR +25