65 c10 shortbed stepside rearend swap...need suggestions

[reecetas7196]

I'm in need of some input for a rear end in my 65 C-10 Shortbed Stepside...I gotta replace it and I'm not certain what rearend is a good fit for it. I need something that's good for highway travel and somewhat newer than the '67-'71 rearends that I've heard will fit. The guy I bought it from said that he thinks the rearend on it now is from an s10, but he wasn't sure and the axle housing is warped due to somebody doing a crap weld job on the track bar.
Any input and/or suggestions are welcome. Thanks!!