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Stupid question, but does tire size impact the required toe in or is it always 1/16"-1/8"? Is that the factory specification?
It’s always 1/16”. The purpose for the slight toe in is the friction on the road forces the tire out (when moving forward), so you’re tire is actually at 0” toe in motion. Factory specification is 0.25* I believe.
OK.. I know this was asked ten different ways. I'm going to ask again.One more question that I have is whether you should align it at 1/16" - 1/8" no matter what Tire size you are running? Is there any difference between this number for 31" vs 33" vs 35" tires?
Take a tape measure and hook it on your mud terrains, same spot on each side. Do the math based on that. I can help with the math for whatever angle you want based on tire size, I'm sure others can too. You don't need all that other crap.OK.. I know this was asked ten different ways. I'm going to ask again.
OK.. I know this was asked ten different ways. I'm going to ask again.
I am looking at a set of the alignment plates. I prefer not having to jack up the jeep and remove the wheels to do a spot check on alignment. The difference in cost is maybe $40 bucks which I'll recoup in time saved by being able to leave the wheels on.
I have 33's. In the original post the metal bar was marked at the center point and then 16.5" fore and aft and adjustments were taken at the 16.5" mark front and rear. All of the alignment plates I find are about 24". Are we still shooting for the same 1/16" toe in even though one method measures 16.5" fore and aft of center and the other method measures 12" fore and aft of center?
Nope. I just used the other calculator to help @JMT realise that he doubled his result.
As a synopsis, so we don't confuse the matter any further:
0.30 degrees total = 0.15"
0.18 degrees total = 0.095"
0.42 degrees total = 0.22"
0.30 degrees total = 0.16"
0.18 degrees total = 0.97"
0.42 degrees total = 0.23"
0.30 degrees total = 0.17"
0.18 degrees total = 0.1"
0.42 degrees total = 0.24"
0.30 degrees total = 0.18"
0.18 degrees total = 0.11"
0.42 degrees total = 0.25"
Very likely and just about 100% likely if you take your time with the measurement. I was getting tires for my Jeep when the shop told me it'd need to have its toe-in checked and set or the new tires would start wearing prematurely. I declined and explained I set my own toe-in all the time and it worked perfectly well. They started arguing, saying I couldn't possibly have gotten it good enough with my method. They insisted they at least check it for free, only charging me if it was off and it needed to be adjusted. I agreed and they ended up sheepishly agreeing my toe-in was perfect. Of course I was watching the numbers they were getting during their check too lol.I love the attention to detail. I am in finance and being accurate is a necessity. That said, how likely will it be that the alignment methods shared here will be accurate to 0.24-0.36 degrees?
Well, I thought I was going to check the alignment......but the tie rod is definitely not straight. There is a visible bend and the toe in is 5/16". Makes sense the two would be related. But to be clear...tie rods on TJ's are supposed to be straight? Right?