I need to know how to determine what spring rate i need for a set of coil overs. I dont know what the weight is at each corner. I am ordering a set if 16" travel king 2.5 coil overs and need to let them know what spring rates i need. If some one coulod help let me know.
Information on vehicle. Runnning a yj with the 4.0, auto trans with a 231/205 doubler set up.

I just recently set up a couple of TJ's. They were on 14" Fox, so not sure if it will be the same. On one we used 14" tall 250lb springs on the bottom & 12" tall 250lb on top with take up springs. This was on all 4 corners and with Eibach springs. The other used 14" 350lb lower, 12" 250lb upper, with take up springs for the front. In the rear 14" 300lb lowers, 12" 200lb uppers & take up springs. Both jeeps were streched. 112" on the first and 106" on the second.
I assume the YJ would weigh close to the same. They work great for the rocks but I would want a little stiffer for anything high speed. I know its not exact but gives you an idea. Good luck.

Thanks. My rig is a trail only rig so high speeds are not a factor. I can use this as a starting point. I was told that if the spring rates are no right I can return them as long as they are not all messed up but I needed a starting point. Thanks