Just going by the final numbers shown that seems like a lot of caster has been dialed in? 2 degrees is the nominal factory setting I believe unless IA has changed the specification recently to help stem all the complaints of lack of steering wheel centering? I’d be curious to see how sharp of angles your front driveshaft CV’s are running at now as more caster will push the front diff pinion even further down.
Steering Axis Inclination (SAI) does seem to be off quite a bit from side to side and could be contributing to the pull did front suspension take a big hit off-road at some point? I’m no expert but for most alignments you want things to be mostly symmetrical from side to side otherwise it may indicate bent or incorrect tolerance components. Sure, there are certain older models of vehicles where slightly different specs side to side were used to account for road crown or vehicle loading but I don’t think that is the case here.
I’d seek a second or third opinion on it for sure as the rear axle could be a bit straighter so not to introduce a crabbing angle although it’s not far off.
One degree over spec isn't going to kill a CV. I wanted to see what tracking was like with maximum possible caster, since I already knew there wasn't much left in the bucket. I'll likely dial it back to 3 and see what changes. I will say, that little bit really affects stability.
The difference in the SAI means the knuckle wasn't welded to the axle housing correctly. Now, that could be welding method and heat, or, just a misalignment, a lack of QC. Who the f**k knows.
I know plenty of people have said their truck tracks perfect. Also plenty of people have had never ending issues. I had this aligned at RDS (dealer) 1000 miles ago, and they said it was definitely out but they got it spot on, but, I did not get a number sheet and it was actually worse on the road. The initial #'s on this sheet would be after the RDS alignment. So, I took it in locally and said I wanted secondary numbers also, not just a consumer pictogram. This is what I got after they realigned it.
I haven't done anything to the car, and will not until all warranty related issues are sorted. I tested the 4wd system on a gravel hill outside of my warehouse, that's it besides mall duty.
Moving on, I spoke with RDS yesterday, and they had shown these numbers to the tech that was in monday moving their machine to a new location, and he agrees there's an issue somewhere due to the difference, I'm going to take it in a third time to make sure the local tech had the wheels locked down correctly. They could not tell me what the factory number is supposed to be, and Inoes did not respond to the request. I'm sure there's a tolerance. We only agreed that the difference is too much and ought not be there. So far, so good with RDS. They are just 4.5 hrs away so I need to handle little shit like data gathering myself, or they would have it.
If it turns out the SAI is wackadoodle on a third check, then there may be a QA issue with carrero. Having dealt with Italian manufacturing in a previous life, and nothing would shock me. Yea, they do make tractor axles, and this variance wouldn't be an issue on a tractor axle and I have no doubt this would get pushed out the door. I kinda want this to be it, because then theres hope for remediation.
Stay tuned. It may be a few weeks before I have more time to commit to another alignment.
