Vibrations, Chirps, and Headaches after Body Lift and Tires

[squirrel]

I have a headache....problems during and after installing modifications...$4k so far and counting. Any advice on the following post install problems...

Installed body lift, tires and wheels delayed so I ran on stock wheels and tires with no problems. After installing wheels and tires (33x12.5x15) the truck vibrated. Went through 2 sets of tires and a few wheels in a few weeks due to excessive weights to balance. Finally removed sticky weights and balanced using weights on inside and outside of wheel (silver weights looked like crap on black wheels so I painted them to match). Had another alignment and balance done which took very little weight to balance out. Vibrations mostly gone, but still vibrating in steering wheel between 40ish-65ish mph. After 65 the vibrating is pretty much not noticeable. Wondering if I need to replace steering stabilizer with a better one??? Especially since autorotation after a turn is not quick to respond, unlike when I ran stock tires. Also noticed a wiggle in the rearend...no constant variable, just happens when it happens. I can feel it and see it in my side view mirror watching the bed in comparison to the cab. Truck hops at times, but thats to be expected.

Also have a chirp going on. I can make it sound off when I want to. Pretty much any bump, especially the reflective markings on the road, make my truck chirp at 20+ mph. Sound comes from under drivers side. I know this is the steering forum, but any guesses?

Oh yeah, I drive a lot....i mean a lot. Truck is 2 years old and I am just shy of 62k miles, original owner.

Any help would be greatly appreciated.



3" PA Body Lift
Rancho RS9000XL
Rancho myRide Wireless Controller
33x12.5x15 BF Goodrich AT/KO
15" M/T Signature Series (Satin Black Classic II Style)
AirRaid Intake
Magnaflow Single Cat Back

 

[Original_Ranger84]

welll your running larger tires with what I am assuming are more agressive tires as well so that is where your vibration and lack of steering whateverness is coming from I assume. as for the chirp I wouldn't know where to start it could be about anything that i can't think of.

 

[mwood1985]

check your steering shaft and front hubs the larger tires could have caused premature wear. plus if you went from highway tires to Ats that would be it. check your body lift bolts for tightness. and your truck like mine doesnt have a stabilizer

 

[squirrel]

I'm making a laundry list of things to check. Will add hubs and steering shaft. I havent looked underneath the truck yet, but I thought my year truck has a steering stabilizer. I didn't do the lift install, had a shop do it for me...looks like I should have done it myself to begin with. Not sure about the wear and tear from bigger tires yet, but may be some from this long bumpy swirvy road i fly through everyday. Although I havent had them on for 5k miles yet. I was running stock size (275? or 255? whatevers) Goodyear Wrangler ATs, but these 33" BF Goodrich AT/KOs are a bit more agressive and much wider. If I dont have one, would adding a steering stabilizer help much? I'll have access to a lift and bay on base next week. Working that list of things to check as well as try to recreate my chirp while on the lift. Plan to crank down bed bolts as well as u bolts in the rear.

Any recommedations on tuners? I'm looking at ordering a Supchips or Diablo Tuner and AFE Throttle Body Spacer this week.