Pinion angle question.

J

Jasper302

Club Member
I'm going to look at a 1982 Chevy Short bed 4X4 Pick-Up some time this week. The truck looks really nice and has a boat load of new parts on it. It also has a 4" lift, so I'm worried that they might not changed the pinion angle, as most people don't. I'm under the impression that lifting a vehicle automatically puts more wear and tear on various parts. At this point I do not know if the lift is all suspension, body, or a combo of both. I was just working on a check list and figured I better post this up.

1. Should I be concerned about the pinion angles?
2. How can I check/measure the angles?
3. What should the angle be?
4. What kind of cost to set them right?
5. Anything else to be concerned with?

Thanks,
Dennis

Truck in question:

http://jxn.craigslist.org/cto/1507289340.html
 
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well thats news to me. an angle finder doesnt read correctly unless level. thats the only way I've been taught to do it
 
1BADAIR said:
if an angle finder was always level it would read 0. not much use for angle finder then
Click to expand...
i dont think you understand. If the front of the car was on ramps and you pull the driveshaft, slap the angle finder on there your reading wouldnt be right. The car itself needs to be level to get an exact reading of what your pinion angle is at. do you understand the words that are coming out of my fingertips?
 
superstang9085 said:
i dont think you understand. If the front of the car was on ramps and you pull the driveshaft, slap the angle finder on there your reading wouldnt be right. The car itself needs to be level to get an exact reading of what your pinion angle is at. do you understand the words that are coming out of my fingertips?
Click to expand...
you dont understand. thats not pinion angle
pinion angle is the difference between the angle of the driveshaft and the angle of the pinion.
driveline angle is measured from chassis(or engine) to pinion.
your measuring the angle of the pinion in relation to the ground which doesnt mean a thing
 
superstang9085 said:
i dont think you understand. If the front of the car was on ramps and you pull the driveshaft, slap the angle finder on there your reading wouldnt be right. The car itself needs to be level to get an exact reading of what your pinion angle is at. do you understand the words that are coming out of my fingertips?
Click to expand...
car does not have to level to check pinion angle.
 
1BADAIR said:
you dont understand. thats not pinion angle
pinion angle is the difference between the angle of the driveshaft and the angle of the pinion.
driveline angle is measured from chassis(or engine) to pinion.
your measuring the angle of the pinion in relation to the ground which doesnt mean a thing
Click to expand...



Yeah doesnt need to be level , Larry explained it perfectly.


Read here for explinationa nd pictures to help ya out!

http://www.baselinesuspensions.com/info/pinionangle.htm
 
It all depends on how much lift the truck has. Some pinion angles need to be aimed right at the transfer case some just need a little adjustment to keep u-joints alive.
 
Scott @ DLS said:
It all depends on how much lift the truck has. Some pinion angles need to be aimed right at the transfer case some just need a little adjustment to keep u-joints alive.
Click to expand...

and the type of joints, if it has double cardigan or CV joints, point the pinion at the trans, all will be good
 
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