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What's this angle

 

let me get my 6th grade protractor out and see

 

Thats a horrible way to measure the angle. The line on the diff especially is likely not the most accurate and the picture is take from a angle. Just buy and angle finder for $10 and measure the two angles.

 

I measured it with a digital angle finder.

For the pinion angle, I indexed against the face of the yoke.

For the drive shaft, I indexed against the bottom of the drive shaft.

There might be some small errors if the angle finder wasn't exactly aligned on the shaft or yoke but I'm sure both measurements are within a degree.

 

Photo of pinion angle measurement technique I used:

 

Just toss in a 6 degree and take another measurement, or just a pic. Shims are only 10 bucks.

 

Who sells them for 10 bucks?

 

 

http://www.ebay.com/itm/Pro-Comp-Jee...f6d609&vxp=mtr

 

I think these are only 3 degrees.

Can you stack them without problem?

 

for every degree the pinion goes up the d.s. goes down. That would mean you need a 8 degree.

 

Because the drive shaft is about 3 times the length of the pinion, I think the drive shaft angle only goes down by 1/3 of the degrees in the shim so I came up with a 12 degree requirement.

It looks like a 8 degree shim is the largest available so I am going to try one of them.

 

I dont mean to change the subject but how much more travel do you have in that drive shaft? It seems short compared to mine.

 

I have been looking at that myself.

About 1 1/4".

My shackle angle is currently forward so I don't think there is much more droop to be had.

How much do you think I need?

 

You should be fine. The DS actually gets longer under compression. The Leafs form a triangle, but the change isnt much so you should have plenty. Id do some flexing and measure it to be sure though.