C-10 Wheelbase

I bought a 82 longbed C-10 yesterday. I've always wanted a shortbed, but for the price i got this one for, i could pass up. I plan to stockfloor with an underslug fram from the firewall back. When i do this i'm just gonna make it a shortbed. So, my question is, what is the wheelbase of a shoetbed. thanks.

117.5