Camber and Caster

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Can someone tell me what the original factory specs were for the Model A front axle regarding camber and caster?
 
I've not seen any camber specs specifically for the 'A',, but,, most straight axle cars of this era had camber settings of .5-1.0º+ .. Caster was generally in the 4-5º+ range with the 'A' set at 5º.. Early toe was set more aggressively than today.. Most were in the 3/16" range as was the Ford.. Once roads conditions started to improve that was found to be too much and most where reduced to the 1/16" range..
 
Caster is 5 deg and if you look in Les Andrew's book he shows an easy way to calculate it dropping a measurement to the ground from the axle, and then measuring to the ground along the axle angle to form the opposite and adjacent of a triangle. You then take the inverse tangent of that fraction to get the angle (I know Trigonometry is involved - sorry). Camber is 1 13/16" difference between the top and bottom.
 
Can someone tell me what the original factory specs were for the Model A front axle regarding camber and caster?


I actually answered you this morning on your other post. Click HERE for the measurements in degrees which is what you will probably need if you are using a front-end alignment machine.
 
I went and looked my 'library' .. I'm missing most books of the late 20's and early 30's unfortunately.. The 1935 Motors book say caster should be 6.25º, camber +5/8º, toe 3/32"
The 1925 Dykes manual says, caster 5º, camber 2º, toe1/4"
 
Brent, 7* camber? I believe the king pin inclination is 8* on early Ford spindles and the factory machined in 7* at the k/p boss on the axle. Camber will be more like 1/2-1*.
 
From the alignment specs in the 1936 service bulletins--( all specs in degrees)
caster, max;6-1/2, min;3-1/2 ,max varaition between wheels;1/2

camber,max;2, min;1/4, max variation1/4

camber plus side inclination,max;9, min;8-1/4

toe on turns--15 degree turn 20 degree turn
17 degrees 23-3/4 tolerance-1/2 degree

Toe in is set to 1/10 of total camber (if each wheel has 1 degree of camber ---add together (2), 1/10 of 2 degrees = 12 min total toe
for cars with less than 2-1/2 degrees caster higher toe is usually required.
 
KPI .. This something is generally not checked unless someone thinks there has been some 'warpage' from a hard hit.. The 1925 Dykes book had no spec.. 1935 Motor manual had it at 8º .. All the specs I listed are about right and shows that not too much has changed over the years..
 
The alignment is all hard set. You just need to make the axle like factory and have the wish bone set up properly and you will be right.

I wrote up how to check an axle off the car. Here is the link to my website:

Axle straightening

You need to go to a truck place to straighten the axle on the car. They have special tools to bend axles on the car.
 
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