79 big 10 k10 what do I have

[sb80514]

Thanks guys for all your help so far I'm new to this forum and I am definitely a fan I will keep yall updated as I go with it I paid 1500 for it has bad motor fuel pump pump gas into motor thinning out oil I'm gunna try to keep the classic look with it only a 4 inch lift with narrow tires on the old steelies have 350 4 bolt main goin in next week true dual exhaust X pipe and super 40s to come as well and will be checking in to getting the ac working

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[1967KaiserM715]

Very nice, my brothers(well now my parts truck) was same way was definitely 1 ton, but the vin and glove box codes were all medium duty truck stuff(2.73 gearing 5 speed and two speed rear end)


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[LTZ C20]

Welcome. As many members have mentioned, it appears someone has done some moving of parts.

This is evident by:
1-the "big 10" sticker on the bed. As they mentioned, big 10 was for 2wd models only.
2-the front axle according to some members doesn't match for a 79, it does look correct for an earlier 70s model.
3-though the hood is correct for a 79-80 model truck, the grille and headlight bezels are not, they are 78 and earlier.
4-the dash trim, fender emblems, body side emblems(behind the door), door panels inside are all correct for late 70s.