Toe In or Toe Out

[Headbarcode]

I believe the idea of using that alignment tool is flawed by design... I can come up with a similar tool that is 36 inches long, and while from the mathematical /scientific point of view is going to be more accurate, it will certainly produce results that differ from a 24 inch tool... unless 24 inch is an industry-standard (which I certainly doubt because alignment machines used by tire shops I am sure do not use those parameters) ... then I do not see a way for a tool bought online to match the results of a tire shop using modern machines) ... so... I think these tools made by BleepinJeep and TMR do work... but we will have to join forces and share results... I run 40 inch tires and I am going to use my tool in the coming days... I will share results... !!

That tool is far more accurate than guestimating on the tire. It's a linear function so it's easy to convert. I'm no fan of banned pony tail or Dynatrac marketing but you can see how they do it here.

So use the 24" tool and if you want to want 1/16" on a 37" tire
1/16*37/24 = ~ .096
At that point I'd use mm.
But I question 1/16" is perfect for 33" tires and 43s.

Edit:


Exactly, you want degrees, which is invariant to bar length, and the tool has the degrees to inches conversion so you don't have to do trig.

I have to admit that I didn't watch that tmr video. Figured it was a tutorial on how to read a tape measure, with warnings to not run the tape over the hood. It makes sense that it's converting the measured differential to degrees. At that point, the length of the tool is just providing a repeatable distance between measuring points for the formula.

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[Roky]

If you’re gonna use one of the gimmicks just make sure that it’s the same length as the diameter of the tire your running, and you’re golden……..

 

[SC_Titan]

Stupid question. How do you convert 1/16in to degrees?

 

[SC_Titan]

So for 36in tire

0.0625/18=.00347

Total toe 1/16th = .00694 deg??

I must be missing something

 

[Roky]

So for 36in tire

0.0625/18=.00347

Total toe 1/16th = .00694 deg??

I must be missing something

I use this because I’m not a very educated man…?

https://robrobinette.com/ConvertToeInchesToDegrees.htm

 

[Willys41]

I have been an auto technician for 40 years
I have see some craze shit when it come to alignments
If you go to 5 different tire stores and get 5 different alignment checks you will have 5 different print outs
It all depends on the technician the machine and the last time the machine was calibrated
On a wrangler with a strait axle learn how to do it your self. At least you wont have to wonder if it was done right
For me with 35 in. tires 6 degrees caster on level ground and 1/8 toe in with two 24in. levels across each rotor face where the wheel bolt on not on the brake pad surface area
This ant rocket science.

 

[word302]

Toe out works better on trail rigs in 4WD. The front axle pulling itself forward brings toe out closer to 0. If you were already toe in it would become worse. Toe in is probably best for the street in 2WD though.

Why would anyone care where their toe was set off-road?

 

[jhern88]

I had a bad steering shimmy a while back with 1/8" toe-in. I took Roky's advice and 1/16" toe-in worked out great for my Jeep. That was both 35's and 38's with the SteerSmarts linkages, and now 40's with the RPM Performance linkages.

So what is the measurement front toe out and rear toe in, example front toe out 69 1/2 rear toe in 69 5/8 ?

 

[jhern88]

So I am getting ready to install Steer Smarts drag link and tie rod assembly on my 2021 Rubicon. Currently running 37’s with the Mopar lift.
My alignment settings are castor at 6.4 degrees and toe set at 1/8” toe in. Jeep drives really well and after 15,000 miles I have excellent tire wear (rotate every 4000 miles).
Steer Smarts recommends 1/8” to 3/16” toe out.
I had seen videos recommending toe in because 37’s being so large and heavy that they would naturally be forced outward while driving. I do my own alignments and when I get the Steer Smart parts I can try it both ways but was looking for others experiences and opinions.

So what is the measurement front toe out and rear toe in, example front toe out 69 1/2 rear toe in 69 5/8 ?

 

[Willys41]

So what is the measurement front toe out and rear toe in, example front toe out 69 1/2 rear toe in 69 5/8 ?

Yes

 

[jhern88]

Yes

How about your jeep front toe out and rear toe in measurement?

 

[Willys41]

How about your jeep front toe out and rear toe in measurement?

I am toed out 1/8.
I don't remember the measurements.
Here is a video. The difference is they toed in.

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