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You should state weather the ? are pointed up or down

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As Stated, you have 275* of Pinion Angle all added up.


I can state without a doubt! That you do have some pinion angle!

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Fear wasn't enough to keep me from clicking on this.
I wish I could help , but I am struggling to decipher your angles and how they relate to flat level ground.
There seems to be an information overload.
You can get the pinion angle from the tail shaft and pinion yoke angles alone..........yes ?
Or maybe I am more confused than you are.

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2 theories ... one uses pinion and trans the other
uses pinion and drive shaft... now days I just ask
which answer would you like... I dont care to get
into all the BS... I happen to use the drive shaft
but when I built the car I put the trans on centerline
with the pinion

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Well, I hate to tell you this but lets start over.
1.) Get the car up in the air with the car supported on the rear axle and the front supported around the front suspention.
2.) Take the driveline off the pinion yoke.
3.) Measure the angle on the pinion yoke were the caps bolt to.
4.) This should give you a measurement with the needle on one side of 90* towards the front of the car or towards the back of the car. Record it.
5.) Put the driveline back on
6.) Now put the tool on the bottom of the driveline and take another measurement. Again it should be on one side or the other of the 90* mark toward the front or back of the car. Record it.
7.) Now that all that is done if one measurement is 4* toward the back and the other is 2* toward the front your pinion angle would be 6*.
8.) If they are both the same way (toward the back) 4* and 2* then your pinion angle is 2*.

Hope all this helps!

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Fear wasn't enough to keep me from clicking on this.
I wish I could help , but I am struggling to decipher your angles and how they relate to flat level ground.
There seems to be an information overload.
You can get the pinion angle from the tail shaft and pinion yoke angles alone..........yes ?
Or maybe I am more confused than you are.

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Well, I hate to tell you this but lets start over.
1.) Get the car up in the air with the car supported on the rear axle and the front supported around the front suspention.
2.) Take the driveline off the pinion yoke.
3.) Measure the angle on the pinion yoke were the caps bolt to.
4.) This should give you a measurement with the needle on one side of 90* towards the front of the car or towards the back of the car. Record it.
5.) Put the driveline back on
6.) Now put the tool on the bottom of the driveline and take another measurement. Again it should be on one side or the other of the 90* mark toward the front or back of the car. Record it.
7.) Now that all that is done if one measurement is 4* toward the back and the other is 2* toward the front your pinion angle would be 6*.
8.) If they are both the same way (toward the back) 4* and 2* then your pinion angle is 2*.

Hope all this helps!

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Great explaination. Rates right up there with the best.

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Well, I hate to tell you this but lets start over.
1.) Get the car up in the air with the car supported on the rear axle and the front supported around the front suspention.
2.) Take the driveline off the pinion yoke.
3.) Measure the angle on the pinion yoke were the caps bolt to.
4.) This should give you a measurement with the needle on one side of 90* towards the front of the car or towards the back of the car. Record it.
5.) Put the driveline back on
6.) Now put the tool on the bottom of the driveline and take another measurement. Again it should be on one side or the other of the 90* mark toward the front or back of the car. Record it.
7.) Now that all that is done if one measurement is 4* toward the back and the other is 2* toward the front your pinion angle would be 6*.
8.) If they are both the same way (toward the back) 4* and 2* then your pinion angle is 2*.

Hope all this helps!

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ok on the rear yoke its 80 needle pointing to the rear

on the D-shaft its 86 needle pointed to the front of car

this is with the car on the ground -- weight in the seat. Thats how "most" of the people say to measure.

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With this info I would say your pinion angle is 14*

Your info says to me that the pinion yoke is down 10* and you driveshaft angle is down 4*

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I find this confusing because there are 8 different methods/opinions on the subject .

SO--lets try a new approach. Im going to post my measurements and lets see if everyone comes up with the same number in the end .

Here we go:


d-shaft at rear angle 86 degrees (4 ? ) DOWN measured on bottom of shaft. D shaft is pointed down at rear.


pinion flange 81 degrees (9 ? ) DOWN vertically measured . pinion is pointing down .


trans seal - measured vertically 88 degrees (2?) UP .


pinion yoke (u joint cap) 5 degrees DOWN


so ... what is my pinion angle ?

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trans seal - measured vertically 88 degrees (2?) UP .
(you can go off the balancer if you can get on it for this measurement also)


pinion yoke (u joint cap) 5 degrees DOWN


so ... what is my pinion angle ?

-3

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I would say 7* pinion angle. This is why if your transmission was 0* just for sake of trying to make things easy, then you raise the trans 2* you have added angle if you lower it 2* you would have 3* pinion angle. This is why I always use the drive shaft and the pinion yoke, the math is easier.

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trans seal - measured vertically 88 degrees (2?) UP .
(you can go off the balancer if you can get on it for this measurement also)


pinion yoke (u joint cap) 5 degrees DOWN


so ... what is my pinion angle ?

-3

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I would say 7* pinion angle. This is why if your transmission was 0* just for sake of trying to make things easy, then you raise the trans 2* you have added angle if you lower it 2* you would have 3* pinion angle. This is why I always use the drive shaft and the pinion yoke, the math is easier.

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