Upgrade your suspension as you can afford it. You won't regret it.
There is no such thing as minor Death Wobble. You either have DW or Not. By definition it is a uncontrollable violent shaking of the steering wheel that usually starts randomly after striking a bump or crack in the pavement. The only way to stop the shaking is to slow down substantially. If you have ever experienced it you have probably soiled your underpants.
If you have this do not drive your Jeep until it is repaired. DW in Jeeps is mostly caused by the track bar. Either worn or loose. Get under your Jeep with someone moving the steering back and forth and look for play in either track bar end. DW can be caused by other things, if you cannot find the cure get it into a alignment shop for a inspect.
If you have a shake or wobble with a certain speed then the first thing to look at is tires. Then u-joints, tie rod ends etc.
Your new coils will change the caster angle on your front end. The best way to adjust this is with control arms. I bought Rancho ones for my JK. I would've bought Metal Cloak but north of the border we get a bad deal on exchange. I like this type of joint because I wanted the quietest ones I could.
Someone here with Jonny Joints can chime in about noise or vibration?
2014 JKU, JKS lift,Poison spyder flares, bombshell covers,Rancho D2 control arms, JKS adjustable track bars, 35" Tires. GrabBars, Crawler Conceptz rear bumper, Smitty front bumper, Winch. Rough Country inner fenders, Teraflex Disco Mud Flaps
Backseat Dobermann Security