sixpack_2_go

iTrader: (1)

i did it on a drive on alignment rack. the full weight of the car was on the suspension.

OldeSkool

It could just be the new set up transfers more noise but the chances are good that the angle is wrong.

you can try 1.5.

For everyone's benefit, here's how to make sure the pinion angle is right.

The best way is to start from 0

Fiddle with it until the needle points to the same spot when placed on the drive shaft as it does when placed on the TA plate so... it may point to something like -4 on the DS and -4 on the TA plate.

Then turn the adjuster to angle the pinion down until there is a 2 notch difference.. like -5 and -3... -1 and positive 1.... 0 and -2... etc... positve 15 and positve 17

or if adjusting for 1 degree... -1 and -2.... -7 and -8..

BubaGumpShrimp

iTrader: (1)

forgot to ask you what side of the car did you take the angle from. You could have made it +2 instead of -2. Depending on what side of the car you too the measurement from you need to know what numbers(what side of the dial) to look at. Now what i mean by side of the car im refering to when you put the angle finder on the torque arm mount what side of the car were you on to read the numbers. It doesnt matter what side your facing, you can do it from either side its just one side will be oposite direction on the anglefinder so you might not be looking at the right number.. An easy way to see what side of the angle finder to look at all you need to do is put the finder on the torque arm, once its on there pull the the front of the angle finder down(the end nearest the drive shaft) while keeping the back touching the torque arm. What ever side the needle moves too thats the side you need to see it reading 2

chrismorales75

-1 to -2 for autos and -2 to -3 for manuals.

I'd use -2 on your car to start.

OldeSkool

again, not all autos need the same thing, not all manuals need the same thing, as already explained and apparently ignored by some ^ .... it depends on your setup and your uses but at least we can agree that -2* is good for you.

everyone takes this "rule of thumb" that comes with the instructions for their torque arm as gospel when all it is is the manufacturer trying to cover a broad range of possible situations and providing a little guidance for people who dont really understand what the point of adjusting the pinion angle really is

For example.. why is it always suggested that a manual have a little more negative? because of the shock that a manual can generate when you drop the clutch as opposed to the absorbtion that a torque converter in an automatic offers. But we all know that some people have slipping clutches and other people have very stout autos with trans brakes and the like.. in this case, the auto would want more negative than the manual.

and ignore bubba gump... adjusting the torque arm so that the angle finder points to -2 IS NOT CORRECT.

Like I already said, start from 0 degrees. This is when the drive shaft and the pinion are the same.. could be -14567382 and -14567382 degrees.. as long as they're the same, its 0

then use the TA adjuster to rotate the pinion downward.. measure as you go... once there is exactly 2 tick marks difference between the two.. you have a negative 2 pinion angle. So it may read +45 and +43 or.... -67 and -65 or..... +1 and -1 or.... +2 and 0 or.... 0 and -2

BuckaroooZ28

iTrader: (1)

i set mine by putting the angle finder on the driveshaft ujoints in the front compared to the ujoints in the back, hmmm could this be terribly wrong?

chrismorales75

For the front some people measure the angle on the front of the harmonic balancer, some people measure the angle by putting the angle finder on the drive shaft tubing and on the pinion yoke or other bracket that has been welded to 0* (same as the pinion).

OldeSkool

There are indeed a number of driveline angles and various procedures to get everything set up properly. I don't know off the top of my head what they all are or how to measure and set them properly. I've never built a car from scratch or anything where i've had to do that.

But since most people leave their engine and transmission alone and are only changing their torque arms, measuring the the TA bracket plate on the axle housing and measuring the DS is the best way to ensure proper pinion angle... since everything else is left alone

BuckaroooZ28

iTrader: (1)

so i took a couple of turns out, pitching the pinon up, vibration has lessened i believe, or perhaps wishful thinking.

OldeSkool

thats good, just be sure you're not at 0

tomz28

iTrader: (20)

i had the same thing going on the degrees has alot to do with it you need to play with it and see what works for you