What lb springs.... I would appreciate any

what type of driving style is your being built for?

cant really give any advice without knowing any more info from you.

 

Road course mainly. We have a lot of really good , well maintained, paved routes that twist and wind through the country out here. Couple times a year the locals put a run together and shut through traffic down and open it up for us and bikes. Lot of fun.

 

get this kit or a simliar for the front.
so you can use an actual coil over and not rub or destroy your new stuff by the s10s awful geometry.

S10 & G-Body Bolt On Long Travel shock Towers

These S10/ G Body shock towers will allow you to retain “stock style” suspension all while utilizing the tuning advantage of a 24” shock and a taller, lighter spring with more sprung energy. My brackets with the supporting recommendation pieces will net you around 10.5” of travel with maximum...

nickkybobbyinc.com

depdning on your driving a 650# front would be a good place to start
Not sure on the rear with your modified suspension, but a #500 might be good for the rear.

Get the vehicle on a 4 corner weighing and find out what your actual weights are at all 4 corners.

There are a few guys in here that do road course stuff.
Also there is an S10 handling page on facebook that has a lot of good info as well

 

I thank you sir ! This is a pretty tight niche. Not a lot of information out there, and for good reason. But I like a good challenge. Thanks again, have an awesome day.

 

650# is a decent all-around rate for the front.

I also tried the 850# & handling improved but did sacrifice some comfort.
The ultimate rate depends on the roll center which is altered with the spindle & ball joint heights.
The lower the roll center, the higher the spring rate typically needs to be.

As for the rear, remember the front has an approximate .7 leverage ratio, whereas the rear is 1:1 if the shock is vertical.
The effective rate of a 650 in the front is more like 450.

Since the rear is much lighter than the front, rate should be less.
Your effective roll center will determine the amount of rear bar & spring rate.
Your panhard rod location will help determine this.
Mine is pretty good with a 225 rear spring, but I'm still on leaf's.

 

Some good information from you guys. I will be putting it to use soon. I've got a variety of coils from 500# to 800# . Plan on trying them all and get a good consensus on this platform. I'll report my findings for sure. Thank you guys.