Did these trucks have a 5 lug option in 70-72

[dinotruck68]

Well today i went lookin around outside of town and found a yellow 1970 chevy custom 10 longbed in a yard.
to make the story short I ended up buying the truck for 500 bucks !
Barely any rust Original color still looks good and a good strait body.
But the truck is missing the motor and trans it had a 350 350 in it but they're long gone, and its 5 lugs all the ways around.
Im goin to use the bed for my 68 4x4 then fix the 70 up well enough too get a few extra hundred bucks out of it : )
oh and were the 5 lugs original ??
sorry no pics y'all
camera broke.