Alignment toe

[Randomrunner12]

Hey everyone, I saw on a post a few days ago that said to have the alignment shop set the toe at 1/64".

Is this correct? Is this for both sides?

 

[SnoKing]

Hey everyone, I saw on a post a few days ago that said to have the alignment shop set the toe at 1/64".

Is this correct? Is this for both sides?

If you are talking about a new 4th gen dually, it has been found the RAM spec will lead to early tire wear.

 

[Randomrunner12]

2012 2500 ccsb 2wd

 

[SnoKing]

2012 2500 ccsb 2wd

Go with factory spec.

 

[Randomrunner12]

Roger.

 

[AEdelheit]

For solid axle 0.00-0.05 is ideal, very few shops will use inch measurement anymore as it does not account for different tire size but IFS is different game.

 

[Randomrunner12]

Yeah it's ifs that's why I thought I'd ask cause I've seen alot around hear saying 1/64" toe but wasn't listed on what trucks or years.

 

[Cummins12V98]

For solid axle 0.00-0.05 is ideal, very few shops will use inch measurement anymore as it does not account for different tire size but IFS is different game.

degrees or fractions it’s all the same.

 

[AEdelheit]

degrees or fractions it’s all the same.

Except a 31" tire and a 37" tire at 1/64" toe in at the tread is not the same at all, 0.00-0.05 deg is however...........

 

[gsbrockman]

Except a 31" tire and a 37" tire at 1/64" toe in at the tread is not the same at all, 0.00-0.05 deg is however...........

Playing the Devil’s Advocate here........but aren’t ALL alignment specs taken from the sensors attached to the WHEELS and not the TIRES?

 

[AEdelheit]

Playing the Devil’s Advocate here........but aren’t ALL alignment specs taken from the sensors attached to the WHEELS and not the TIRES?

Typically when someone refers too 1/64" , or any other fractional measurement, they are going off the tread. While alignment machines have the ability to measure toe in fractional measurements from the center its rare to see that used.

 

[Randomrunner12]

Awesome, Thank you guys for all the information you are providing me.

 

[Cummins12V98]

Not an expert but the angle of the wheel and angle of the tire is still going to be the same.

 

[gsbrockman]

Typically when someone refers too 1/64" , or any other fractional measurement, they are going off the tread. While alignment machines have the ability to measure toe in fractional measurements from the center its rare to see that used.

I know of ZERO alignment shops basing their alignment practices on tread measurements. There could easily be more than 1/8” variance in tread measurements anywhere along the circumference of any single tire.......and perhaps 1/4” when you factor in two tires.

 

[AEdelheit]

I know of ZERO alignment shops basing their alignment practices on tread measurements. There could easily be more than 1/8” variance in tread measurements anywhere along the circumference of any single tire.......and perhaps 1/4” when you factor in two tires.

Many people that are talking about fractions are also doing it themselves with tape measure on the tread, use fractions all you want but I will always use degrees.

 

[gsbrockman]

Many people that are talking about fractions are also doing it themselves with tape measure on the tread, use fractions all you want but I will always use degrees.

Sure......I’ve aligned several tractors with string and a plumb bob. I would not want to rely on that technique on a truck or car, though....unless it was temporary in nature to get me to an actual alignment shop.

 

[EDankievitch]

The old factory service manual spelled out the spec’s taken off the bead of the rim. Not the tire.

 

[Cummins12V98]

The old factory service manual spelled out the spec’s taken off the bead of the rim. Not the tire.

One would think so!

 

[AEdelheit]

The old factory service manual spelled out the spec’s taken off the bead of the rim. Not the tire.

Ok so what happens when the OEM wheel is 16" and the customer has aftermarket 20" wheels??

 

[gsbrockman]

Ok so what happens when the OEM wheel is 16" and the customer has aftermarket 20" wheels??

Adjust the retainers on the alignment heads to accommodate 20” wheels maybe?