3" lift steering issues

Hi,

I was trying to find the solution on this forum and I found lots of similar topic but not really the solution. Long story short.
I have a '19 Platinum, that got a 3" lift.
I went with the with the SPC UCA.
Fuel Crush 20x10 -18 wheels, 33x12.5 Nitto Ridgegrapplers tires.

I am perfectly happy with the new suspension, but there are two issues.

1. Steering is very light:
   I attached the sheet that I got after alignment. Caster looks good to me but I am not a professional, I am not sure more caster would help or not. I am also concerned more caster would put too much pressure on some parts and joints.
   
   
   
2. Steering wheel wobbling around 50mph:
   but not all the time... sometimes I have it, sometimes I don't. If it was a tire balance issue, I would see this affect all the time, but I don't. Tires has been balanced two times already.
   Can this be related to the light steering that I mentioned earlier?
   I also read some topic about lugnut centric vs. hub centric wheels.... Based on the measurements the fuel crush should fit properly on the tundra.
   Can be a tire issue? Flat spot? I run on 45 PSI.

Do you have any idea what else should I check? Does the alignments looks good to you?

Thanks in advance,

 

It very well could be tire imbalance. I had a wobble only at 45mph-50mph and got rid of it via tire rotation and re-balance. Maybe try a road force balance?

 

I will try to find and another shop, but those tires were re-balanced two times already. (At the same shop though, they might have no idea what they are doing. )

 

12.5" tires are going to give you more push back and your tire pressure may be a little high for that width tire. Drop your pressure to 40 and see if it makes any difference. Or at least, Chalk test it to see if you're crowning @45psi.

 

I tired different pressures already started at 35PSI, didn't help. 45PSI actually coming from Nitto customer support, this is what they recommend for this setup.

 

Ok,
Nice to get that # from the manufacturer!
I would still do a chalk test on all four tires. This is a clear indication of contact. It might show you something inconsistent and help narrow it down.

 

I have 295/65/20 on my truck. I had mine balance many of times by a shop that does all off road lifts. I was told on here the new tire rod ends will help it and my bump steer. They have tried to center the rim but I hit a bump it messes up again. This is my 2nd set of Nitto Ridge grappers. 1st on my F250. Both times really hard to get balanced.

 

I also called Nitto for PSI and it was like 33 in the front and 35 in the rear. I run 40 on all 4 tires.

 

What do you mean by "new tie rod ends". Mine is a brand new truck with less than 5k miles. less than 4k miles since the lift.
I was thinking about to replace the tires just to make sure it is not the tires, or it is.... But I really like the ridgegrapples, very quite ones.

 

They are very quiet!! I love them but the steering wheel moves 55-65. I have 8000 miles on mine. It began from day 1. The tie rod end helps with my bump steer and my tie rod ends might be hitting my tires.

 

So yours still moves?
This is what I am talking about, I read lots of post here, and it seems there is no solution to get rid of the wobble....

 

No I don’t think so. I will try another set of tires. Mine was doing it before I put the lift on. Dealership tried everything. Just sucks. Or it’s the fuel rims

 

Yes it still moves. Not as bad as it was.