2023 alignment issues

[Timujin]

That looks off, and the bolts look new.

Those were the bolts on my GX470 that were not correctly torqued twice and it caused the alignment to shift.

 

[Timujin]

FWIW

 

[gnob]

These are the two cams from the left front LCA rear point and right front LCA rear point. Is there a valid reason for them to be so different?
View attachment 4119267View attachment 4119268

because that's how it works. in a perfect world they would match but that's not really how reality works. from those positions there is tons of adjustment. did the last place get you squared away?
what's the new printout look like?

 

[Chronicle]

 

[gnob]

does it track correctly or is it still pushing to the right ?

 

[Chronicle]

does it track correctly or is it still pushing to the right ?

Only put about 30 miles on it. It seems better but holding steering wheel straight still goes right even though I personally centered the steering wheel when they did the alignment. I will try adjusting the toe links myself to get it straight and then see.

 

[gnob]

when you just let go of the wheel, does it push?
that -.3 on the left should be zero as well.

 

[mike202]

Per those numbers, the vehicle will have a drift to the right on a crowned road. I would set both front cambers at 0° and dial in a 0.5° caster difference with right side being higher, i.e. left 3.2°, right 3.7°.

 

[Pennwestmechanic]

The steering on these prados brings me back to my first car. 66 mustang and man that steering kept me busy as a teenager. My can am spider I used to have was really bad as the front tires rode in the sunk in road and the rear tire was higher on the crown, all you could do was steer to the left or right because the rear was higher you lost the caster and it was kind of scary at first.
My latest alignment from a family owned shop. He told me he has the caster maxed out before loosing the camber numbers. Pa roads are bad then the farm roads are really bad, all they do now is tar and chip so they will never be flat again.

 

[Chronicle]

I installed adjustable rear LCA's to correct the thrust issue and had it realigned at the same shop. They were able to but could not provide me a report because of the adjustable rear LCA's the hunter computer would not allow a printout. This is ridiculous.

I drove it on a 12 hour road trip and it pulled hard right on right crowned lanes (99% of driving). On left crown it tracked straight. I am back to square one and need to find a shop that can set custom specs and is comfortable enough with letting me see them do it.

 

[Chronicle]

I'd like to take a stab at doing this myself but don't want to invest yet in all the DIY alignment gear. Based on the report and what others have suggested I should remove a little camber from the driver's front and add a little caster to the passenger front. Starting with just the camber if I adjust it by one notch/mark in the eccentrics would that be too much? Does the suspension need to be loaded to tighten these back down?

 

[r2m]

I'd like to take a stab at doing this myself but don't want to invest yet in all the DIY alignment gear. Based on the report and what others have suggested I should remove a little camber from the driver's front and add a little caster to the passenger front. Starting with just the camber if I adjust it by one notch/mark in the eccentrics would that be too much? Does the suspension need to be loaded to tighten these back down?

Wow, some undertaking to consider aligning yourself.
I've always left suspension to the pro's, both installation and alignments. Tires are too expensive to be experimenting with.

 

[Chronicle]

I did find an offroad shop and they aligned it. Still pulls right and the solution they stated is to install upper control arms in the front to get more range to correct the issue.

I want to find the root cause before throwing more money at aftermarket parts since this is still under warranty and had 9 miles on it when I bought it. Taking it to the dealer won't solve it until I can tell them what the source is. Lexus dealers are the worst experience I've had in car ownership.

 

[Chronicle]

I bought a tram to see if something is truly off. Anyone have a source for the frame dimensions for the GX?

 

[r2m]

Official chassis diagrams from the Toyota Land Cruiser Prado 150 / Lexus GX460 Body Repair Manual list the key bare frame dimensions for the second-generation (2010–2023) GX460.
Because the vehicle utilizes a fully boxed ladder frame layout, standard reference dimensions for fabrication, frame straightening, or crossmember modifications are mapped between specific factory datum tracking holes:

Core Frame Dimensions

• Wheelbase Tracking Distance: 2,790 mm (109.8 inches) — Measured exactly from the front body-mount datum line to the rear axle centerline tracking point. [1]
• Front Frame Rail Width (Outer to Outer): Approximately 790 mm (31.1 inches) — Measured across the front bumper reinforcement mounting plates.
• Middle Section Frame Width (Outer to Outer): 930 mm (36.6 inches) — The standard parallel width of the main fully boxed frame rails directly underneath the cabin area.
• Rear Frame Rail Width (Outer to Outer): 1,010 mm (39.7 inches) — The frame flares outward at the rear cargo section to accommodate the fuel tank and spare tire area.

Crucial Platform Notes

• Platform Sharing: The GX460 shares its J150 chassis architecture directly with the global Toyota Land Cruiser Prado 150.
• 4Runner Comparison: While the 5th-generation Toyota 4Runner shares the same general platform, the GX460/Prado 150 frame features a 1-inch shorter rear frame crossmember arc. If you are looking to mount a 4Runner rear bumper or hitch to a GX460 frame (or vice versa), the bolt hole patterns are slightly offset and require minor modification.

Does this help?

 

[Chronicle]

Thanks! Very helpful. My project for this week.