non-gauge option -to- gauge installation

[jocko]

Looking at a truck with no gauge option originally ordered on it - will install the original gauge package - my question is wiring harness related, etc.

What all is required to do the upgrade?

- Is the gauge harness a completely separate harness that can be purchased from a vendor?
- Would it tie into the fuse block of a non-gauge original truck? Or was the fuse box different for a gauge optioned truck?

I'm thinking this is a fairly easy upgrade, have all the parts already, but bought them originally to restore a gauge-equipped truck, so knew all the wiring/senders, etc would be in place. Now lookin at a non-gauge truck (i.e. just has fuel/speedo) and wondering if there are any major electrical/sender etc hurdles of which I'm not aware.

Thanks guys!
jocko