Alignment specs after SPC UCAs installed

[Dollar Retriever]

Hi Everyone,

Yesterday I got a pair of SPC UCAs installed.

When pick up the store gave me a page of paper that shows the specs before adjusting the alignment.
It was black&white page.

Caster 4.3 4.4

I am wondering if I am good and the caster is normal for SPC UCAs.

It has only BEFORE adjustment, I guess I am in specs or they were lazy and didn’t adjust it.

Also, I feel my truck’s steering wheel pulls right slightly when driving. It happened after installation.

It’s that normal?

2021 5th gen 4Runner TRD off-road with kdss
6000km
Bfg ko2 stock size 10ply
B8 6112, B8 5160.

Thank you in advance!

 

[Dollar Retriever]

Ah, how to post an image?

 

[rdruss]

The SPC's have 2 degree of caster built in, so at the neutral setting you got +2 from what you were before. But you can also adjust camber with them too and every time you change one thing it affects the others somewhat.
I would ask the install shop if they did an "after" alignment so you know where you are for future reference. If they didn't then you may want to go get it checked at least so you know where you are.

 

[Dollar Retriever]

The SPC's have 2 degree of caster built in, so at the neutral setting you got +2 from what you were before. But you can also adjust camber with them too and every time you change one thing it affects the others somewhat.
I would ask the install shop if they did an "after" alignment so you know where you are for future reference. If they didn't then you may want to go get it checked at least so you know where you are.

Yes, I think they did.
And they left them at:

0.3 Camber 0.2

4.4 Caster 4.3

0.09 Toe 0.10

Is that good for myRunner?

 

[rdruss]

Yes, I think they did.
And they left them at:

0.3 Camber 0.2

4.4 Caster 4.3

0.09 Toe 0.10

Is that good for myRunner?

Maybe someone with late 5th gen will chime in on alignment specs. Caster is fine.

 

[Dollar Retriever]

Maybe someone with late 5th gen will chime in on alignment specs. Caster is fine.

Thank you!

Another thing, my truck pulls steering wheel and direction to right side slightly after shocks and UCAs installed.

Pretty new truck and tire pressure is perfectly same - all 40 now.

Any other reason can cause that issue? Pretty confused “

 

[Chilow]

Like others have mentioned, you should double check that they performed an actual alignment if you paid for that service. It could very well be possible that they had the intention to align it, but saw that you were within spec and got lazy, which could explain why you didn't get both a before/after comparison.

As for the numbers, those look acceptable for a 5th gen. For reference, I have the following and it drives straight.

Camber: -0.2, -0.2
Caster: 4.0, 4.0
Toe: 0.08, 0.08

You also mentioned the vehicle is pulling to the right. Is it pulling to the right or is your steering wheel not centered? You didn't mention your number for "steer ahead".

 

[Dollar Retriever]

Like others have mentioned, you should double check that they performed an actual alignment if you paid for that service. It could very well be possible that they had the intention to align it, but saw that you were within spec and got lazy, which could explain why you didn't get both a before/after comparison.

As for the numbers, those look acceptable for a 5th gen. For reference, I have the following and it drives straight.

Camber: -0.2, -0.2
Caster: 4.0, 4.0
Toe: 0.08, 0.08

You also mentioned the vehicle is pulling to the right. Is it pulling to the right or is your steering wheel not centered? You didn't mention your number for "steer ahead".

The pulling to the right issue:

My steering wheel is in centre position, 12 o clock, and the vehicle goes straight, no issue. But if I release or reduce the strength that I hold steering wheel, vehicle pulls to right and pulls steering wheel to right as well(both on street and on freeway). Also, sometimes when I brake, when the vehicle nearly stop, it pulls to right pretty significantly.
It happened after the suspension upgrade.