Originally posted by resin addict
Yup, I know it's different, sorry for the confusion...ideally, I'd like to have the box the same color as the frame, but I figured since it couldn't be powdercoated without potentially damaging the internals, I'd be better off painting it.
Bear in mind, a lot of this is new to me, but I think what I'm understanding is that I can dis-assemble, powdercoat the casing, then replace the internals?
Yes, it is a used steering box, should I automatically have it rebuilt? Where can I get that done?

If it's in good shape you won't have to rebuild it.
Adjust it as per motors manual instructions when you re-assemble.

When you disassemble it, be careful not to take the recirculating ball gizmo off the worm.
The balls - about 1/4" OD are easy to lose and you need em all.
At the least, count em.

The powder coating process does not hurt the empty steering box.
You will have to remove the seals and all other pieces prior to.

GM no longer sells Vega seals and Mullins will not sell them to you last time I checked.
You can find perfectly adequate substitutes at a Bearing Supply House.

Once the box is re-assembled - except for the top cover - don't use oil or gear oil.
GM specs call for a particular grease, but several Chevy parts counters didn't know what I was talking about.
Sta-Lubes Extreme Pressure grease with Molybdenum Disulphide works well.

Use an iced tea spoon to fill the box, install and adjust the cover as per specs.

I have two Vega boxes, one's powder coated black with the big front adjuster retaining ring chrome plated.
The big front adjuster nut is painted black.
The top cover is buffed - it's aluminum - and retained by stainless button head allen bolts.

The second is painted with Dupli-Colors gloss black engine paint and the top buffed.
Both have new seals.

Most times, the Vega boxes are in pretty good shape and only require clean-up, adjustment and proper lube.
I believe Mullins does a mix and match bit with used parts when they do their rebuild although the seals are new.