For a 1994 ranger, can I install 1998 grill/headlights? Or do I have to stick to the generation?

you would have to change fenders,header panel, hood and rad support......

basically find a junk truck with a spotless front end

83-92 same

93-97 same

98 + same

__________________
1996 XLT 2.3L 2wd Factory "Hurst Special" 5/6 dropped street toy
1985 XLT 2.8L 4x4 "The Black Pearl"
1987 XL 2.3L 2wd R.I.P.