Coilover question

[pacman1967]

So I am building at 1970 C10 Shortbox street/strip truck, and after reading through many suspension articles on here I decided to go with an aftermarket tubular control arm set up(either cpp or porterbuilt) and coil over shocks. I know I need to have the truck together and need axel weights to determan the springs I need. What I can't seem to figure out is how tall a shock I should use and how much travel. I know alot of you guys have done this type of set up. Can you guide me in the right direction. Thanks in advance.

[vin63]

If I work on a chassis with existing frame rails and shock mounts, I usually set up the chassis with the rearend housing at ride height and measure the distance between the upper and lower shock mounts. This gives me the shock length at mid-travel. Depending on how much shock travel you want (it's a good idea to make sure the length of suspension travel you want for the vehicle does not bottom out the shock you choose), find a shock that's mid-travel is the same (or very close) to your measurement (most shocks will have a fully extended and collapsed lenth spec, or some will have travel length measurements listed). The coil over spring length will be determined by the shock you end up running (some shocks recommend a 12" length spring, others 14" length, etc.).

[pacman1967]

My next question, should I bother with double adjustable shocks up front, I know I am going to do double adjustable in the rear. And has anyone ran Compatiton Engineering coil overs and if so would you recommend them. Right now I am looking at QA1 kit or the Comp Engineering Kit that summit carries. Thanks in advance.