Alignment, unbalanced tires, what is it?

Aloha scientists!

I have a 2018 tundra with mods. can anyone who knows about alignment tell me how these specs look? The reason is that the steering wheel is in-between 12-1 o'clock, it feels a little stiff when turning the wheel to the left but easier to the right. It pulls very slightly to the right, On top of that, I get random steering wheel chatters/vibrations. I just took it back to the alignment shop and they said the specs are within range but it seems like it may be the tires.

What are your theories?

Thank you!!

 

I have what seems like an identical situation that started recently after a failed driver side front wheel bearing. It started after replacing it so I'm wondering if the passenger side is going out as well. Its a bit hard to tell with the tire noise from my setup but it's going in for inspection next week so I'm going to have my shop give me their take on what it may be. I've checked the front end twice in the last two weeks and can't find anything loose. Truck is 2017 TRD and has 68K on it, about 35 on the lift and wheel/tire setup.

 

I think you need more caster on the right or less on the left. Usually .5 more caster on the right helps counteract the road hump and helps eliminate pull. You wheel is off 'cause they didn't center it when aligning it. What UCAs are you running 'cause those aren't stock #s. Can't get to the 5* range with stock UCAs, guessing you're running Camburg.

 

With close to 6 degrees caster your steering should feel quite firm! Better than floaty. Balance the tires and come back to us. Or rotate them around see if the vibrations change from steering end to rear end.

 

What mods? Lift? Stock uca? Tire size? I think your caster is way too high. It’s even red on your sheet. Don’t know how your shop says it’s within spec. Here is my last alignment. I have about 2 1/2” lift and icon uca. My steering wheel is straight and the truck drives straight.

There’s a lot of threads on here with alignment #s if you want to compare with others.

Any decent alignment shop can at least get your steering wheel straight.

 

That's because the factory spec of 3.5 max caster is garbage on lifted Tundras (and other IFS toyotas for that matter). Too low of caster will cause your steering to feel too light and have poor return to center. Like a shopping cart wheel rattling around. Out of spec on caster on the high end is okay, usually 4-6 degrees depending on driver preference is best. High caster may cause the truck to track on road crowns which is what I suspect is happening to the OP. Then the wheel shake isn't alignment related.

 

Maybe. We need more info. All OP said was he had mods. But if an alignment shop says it’s within spec with the steering wheel tilted, I don’t think they would know about the caster. Most shops just get it to factory specs even on lifted trucks. It would also be helpful to know what alignment shop, like if it was an off-road shop.