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Discussion Starter #1
Hi guys,
Ok so I just put on a set of new terra grappler 285/75/16 on my x. So I did the chalk test and at 35 psi the chalk wears out more in the middle than the outer end of the tires. I would think anything lower than 35psi would be too little, or is that normal?





thanks guys.
 

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Discussion Starter #3
Your right, didn't notice that. I figured since I just got an alignment not long ago I would skip it. I'm going to go get one tmrw just to be on the safe side.
 

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depends on the load rating of the tire, also the size and construction of that particular tire, the stock tires are pretty soft construction and need 35, so the tires you bought probably could run less air for optimal wear, but even still most people just run 35 or 40 for economy.
 

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can you try a higher psi like 40 45 and see if the tire chalk wear changes..... a little more psi might make the tire shape itself better with the psi higher
 

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So I got an alignmentnd was told the toe and the caster was off. They were able to get the toe into specs but they said they couldn't do anything for the caster. I have the light racing upper control arms from nisstec, so now I have to figure out how to calculate how much to adjust them.
 

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You need a shop who knows what they're doing with a modified vehicle, not one that just puts it on a machine and does a typical 'toe and go' ... any shop who actually knows/wants to get the vehicle to correct alignment, and not just get the machine to 'factory' spec, should have had no trouble adjusting those arms for you.

You might (probably will) pay more, if you can find a place, but it'll be worth it ... especially if you can develop an ongoing relationship and give a solid local place (won't be a chain, most likely) some good business. I'd suggest calling around to a few specialist places, like racing shops or offroad specific shops ... ask some detailed questions and go with the one that you get the best vibe from. I see from your location info, that you're in San Diego, I'm sure there's at least one or two places that can help you.
 

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So I got an alignmentnd was told the toe and the caster was off. They were able to get the toe into specs but they said they couldn't do anything for the caster. I have the light racing upper control arms from nisstec, so now I have to figure out how to calculate how much to adjust them.
I coincidently have the NissTec UCA's and Trail Grapplers, too. Mine were pretty bad at first and then figured out to turn the top plate 180*. They are not easy to align.
Skibum has excellent advise above.
 

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Slasa when you say to turn the top plate 180, what plate are you referring to? Believe it or not i'm actually having a rough time trying to find a shop that will mess with the uca adjustments.
 

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I take that back, I just found a place that says for an extra 27 bucks they will mess with the adjustments on the uca.
 

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Slasa when you say to turn the top plate 180, what plate are you referring to? Believe it or not i'm actually having a rough time trying to find a shop that will mess with the uca adjustments.
I can't post pics with AG or I would. Mine has a gold colored plate with spc stamped in the side directly beneath the UCA arm that is rounded on one end and flat on the other. When first installed per the directions the flat end was towards the back. The alignment was horrible and could not be adjusted any further. We called NissTec and they told us to spin that plate around 180* so the flat side was oriented towards the front. That would give us extra adjustment. Just doing that nearly fixed the alignment itself.
 
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