Anyone else have problems with thier RCX lift???

I'm finding that if I crank mine up to almost maxx I get death wobble... Like seriously bad wobble, lose stuff out of my cup holders LOL seriously

So I was just wondering if anyone out there has experienced this with this setup or if someone has thiers cranked up and has no problems like that so I can chase something else maybe... I also have 39x15" tires which plays part in enhancing the effect but they're balanced and fine... everything under the truck is brand new minus pitman, idler, tie rods 104k everything's tight...

I have some possible fixes in mind
heim steering (but the roll in the center link is still possible with the ball joints in the steering arms)
a drop pitman arm, move idler down
center link drop bracket braced to x-members with dom and heims
or lower the whole front of the truck 1-1.5"

Thanks

I go into some detail in this thread too, sorry
https://www.f150forum.com/f6/39-mickeys-problem-71709/

 

i may be having the same thing ..i thought it was just mabe riding on the edge of the **** on my grapplers ...but it could be death wobble never had it so im not sure it is it...where i have my t bars at now when i hit a hump in the high way or something and the front end travels up i get it ...one day i cranked the bars up to where my truck was lvl and it drove fine till i got off my dirt drive way and got onto the highway it felt like i was driving on tractor tires and shaking bad

 

could this just be that when they are up that high i need a front end alinment...i thought about cranking them up and then adjusting the upper arms out to see if it helps so i can make it to a shop to get the front end set