That is a Chief. The sticker depends on the year. The wider fender flares are the giveaway that it's a Chief. Those only came on the Chief models and the pickups. The axles are also wider.
Look at your fender openings/the flares compared to the OPs.
Is that the defining difference in the Chiefs, wide trac?
"I like fun" Edd
Clawed: 90GW, TFI, Streetfire, 3"lift all spring, 31"BFG ATs, working RKE, Edel2131, Holly 1850, mild cam,
05 Renegade OME 927, 947, top plate, JBA 4.5s
"Just Jeepin it real"