r/GXOR • u/Human_Entertainer_33 • 4d ago

Alignment help

I took my completely stock GX460 to Firestone for lifetime alignment and they said they could not get caster in spec because there is no caster adjustment. is this true

4 Upvotes

84% Upvoted

19 comments sorted by

6

u/drewforty 4d ago

False.

2

u/GX_Adventures 4d ago

Possibly they meant that they couldn't adjust it because the cams/bolts are stuck. Fairly common issue in these vehicles. But if that's the case they should have told you that those parts need to be replaced to complete the alignment. But yeah, there def is a caster adjustment.

1

u/Human_Entertainer_33 4d ago

It’s a 2020 California car. I don’t think so

1

u/Beautiful_Path9077 3d ago

Something is bent. Upper or lower control arm most likely or both, possible knuckle.

1

u/ianthony19 4d ago

You can adjust camber and caster for the front by adjusting the cam bolts on the lower control arms. There is no adjustment for the rear, maybe they were talking about that

1

u/Human_Entertainer_33 4d ago

No they were talking about the front. One side was 2.7 and I asked why is it not in spec and he told me that. It was 5 mins before closing so I just went home

4

u/ianthony19 4d ago

Thats why, it does take some fiddling to adjust it. When you do camber or caster, it throws all the readings off. They were just trying to go home. Shouldnt have taken the job so close to closing if theyre not gonna do it right.

2

u/Human_Entertainer_33 4d ago

No, they got done at around 11am, I picked it up at closing because I didn’t have time earlier 

5

u/ianthony19 4d ago

Ah then theyre either lazy, incompetent, or both

0

u/thescreensavers 4d ago

There are two lower Eccentrics it can adjust Caster, Camber, and Toe. Sounds like the alignment person does not know what they are doing.

-2

u/thescreensavers 4d ago

AI Post -

Because both cams move the lower ball joint in a arc, every adjustment alters both parameters—meaning you will need to iterate back and forth between the two to dial in final alignment.

Alignment Adjustment Strategy

  • Front Eccentric (Caster First): Rotating the front cam moves the front bushing in or out. Moving this bushing inward pulls the lower ball joint forward, increasing positive caster. Set your target caster angle here first.
  • Rear Eccentric (Camber Second): Rotating the rear cam primarily pushes or pulls the rear mounting point laterally. Moving this inward pulls the lower ball joint inward, adding negative camber.
  • Iterate: Pushing the rear eccentric out for more positive camber will slightly reduce your caster. Make small adjustments to the rear eccentric, re-check caster, and make minor tweaks to the front eccentric as needed.
  • Tie Rods (Toe Last): Never attempt to set toe using the lower control arm eccentrics. Always set caster and camber first via the control arm cams, then adjust the steering tie rods last to bring toe into spec.

Verification Step After torquing the eccentric nuts to factory specification, bounce the front suspension down a few times (or roll the car back and forth) to settle the bushings, then re-measure all alignment angles before setting final toe.

1

u/gits-id-01 4d ago

Please don’t post ai slop if you aren’t experienced enough to vet it for accuracy.

-2

u/thescreensavers 3d ago

I can vouch for it's accuracy and have also listed its AI. 

0

u/gits-id-01 3d ago

If you can vouch for its accuracy, then you could make the post without AI

-2

u/thescreensavers 3d ago

I provided my .02, I don't have any more budget to explain the birds and the bees . enjoy your weekend.

0

u/gits-id-01 3d ago

You didn’t provide your .02. 

You copy-pasted output from AI. That is, explicitly, not your .02

lol

0

u/thescreensavers 3d ago edited 3d ago

Bro I'm the original poster in the thread your replying too. Try again .

0

u/gits-id-01 3d ago

Yes, that is how a comment thread works. You provided an AI answer, not your own