check and correct pinion angle

 

pinion angle. like he said

 

How do I adjust the pinion angle? Also, will it hurt to drive the truck like this?

 

pinion shims and if the angle is off enough that it is causing vibrations then it will lead to premature ujoint failure

 

I have an extended cab with the angles drop blocks

 

yeah? sometimes the angled blocks are not enough and shims still need to be added, if even more than that is needed then you can get the driveline kit from JTR that includes carrier bearing spacer, tranny mount spacer, and shims. It all depends on how bad your angle is off on what you will need to correct it.

 

Yea i figured Id just let you know what I had. So what I need to do is to measure the angles and go from there?

 

yep

 

Thanks for the help man. Im going to pick a that angle gauge tonight and ill PM you tomorrow afternoon with the measurements. These are all i need right?
the transmission output shaft, the front driveshaft, the rear driveshaft, and the pinion shaft on the rearend.

 

Our 01 x cab did this before and after our 2/3 drop on a ZQ8. Its more of a shudder just as you take off; gone as soon as you're rolling. No vibration at any other speed.
Is this what yours is doing?
Are we still chasing pinion angle for this issue?

 

I will get the angles today.

 

Angles I got where:
Trans output: 3 degrees
Front driveshaft: 2 degrees
Rear driveshfat: -2 degrees
Input on rear: 4 degrees

How do they sound?

 

Also, do s10s have double cardan joints? If so, I believe I have a 2 degree operating angle between the second shaft and the pinion.

 

Any ideas?

 

I have a 95 Ext cab with spindle / spring drop in the front and 3" block and removed one leaf in the rear. I have a shimmy problem at take off also and it goes away after about 10-15 MPH. I just bought the truck and trying to find out what the angles should be to cure the problem. It has 3" non angled blocks in the rear. Here is a pic of the truck also just for kicks:

 

@98bluedime- I returned your PM about the angles

@bdmridgeback- have you measured your angles yet? If flat blocks were used and no pinion shims were added then the pinion angle is more than likely off. Ext cabs need either angled blocks or pinion shims to help correct the angle.