Very cool truck and welcome to the board. I always try and lend an hand at the suspension game on these C-10's. Not because I claim to "know it all" but i've damn near tried it all except for bags, i won't do bags. As many of you know, i was the guinnea pig for the Hotchkis TVS suspension. ultimately this is one of the better ways to go, I believe you can buy it through
www.summitracing.com for around 4200.00. Also understanding that is quite an investment for a truck that is going to assume the roll of "daily driver" or a "weekend project" for lack of a better term. Is it worth it, yes in the long run. But I agree with the previous comments made before this one. I have not been a fan of CPP's product for what we do with these trucks. Don't get me wrong their stuff works, but we've found some things that work just a little bit better in some cases for the same cost if not cheaper. If you are not going to take it to the track or local auto cross, then you really don't "need" a TVS kit. to help put the C10 lean to rest a few often over looked items that you should look at replacing when you go to do your front end build. would be front springs, keep in mind those springs are 40+ years old and have well served their duty. Upgrading to a Big Block Spring even if you are running a small block is ok, it will help stable out the front end with a sway bar it will be a huge difference. Now the second item would be a rear sway bar, not only does it help the back stay put, it works with the front to help the front one be more efficient. The chassis on these trucks flex alot, when i say alot, it's more than any of us think they do. So if it were my truck and I was going to build a driver that handles better than a normal truck here's my parts list I would buy.
For $575 Early Classic Enterprises offers a complete front end rebuild kit using all MOOG parts, comes with every thing, ball joints, tie rods, tie rod sleeves, upper and lower control arms shafts, an idler arm and a pitman arm.
$200 Early Classic Sway Bar with Poly bushings
$114 stock height or drop springs in big block or small block rates
CPP has a rear sway bar as well as Hotchkis offers two different version. both work well
a good set of shocks, Bilstiens are the best way to go, but their are others that are just as good.
Steering Box, if you search online their are companies that offer a quick ratio box for the C10's this is another good investment, helps the truck not steer like a truck, this is worth it too.
I hope I didn't overwhelm anyone with my babbling.