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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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bzzzt! do not pass go, do not collect $200.

pinion angle is the angle of the tranny output shaft relative to the pinion shaft. if the tranny is 0, to have 0 pinion angle, the pinion has to be 0. if the tranny is 2 deg. nose up (higher in rear than front), the pinion has to be 2 degrees nose down (higher in the rear than the front) for pinion angle. his pinion shaft is 3 degrees nose down more than the 0 point, so -3 (3 degrees nose down) is correct

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I had to put it on paper but you are right -3* is your pinion angle. So can I have my $200.00 dollars now?

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ok ...

so far we have 2 guys at -3


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<




First theres a problem with your info.


The two guys that gave you -3 are Correct When using your 2* UP Tranny angle and 5* Down Pinion angle.

For the Tranny angle you have a single mesurement of 2* UP! But for the Pinion Angle you have 3 Seperate Down measurements.

5* , 9* , and 10*

With the 5* measurement being taken off the "Yoke Cap"?? I take that to mean you measured off the universal joints cap seated in the pinion yoke.

Im going to guess/assume that, that measurement is a error. And the correct measurement is closer to 9* or 10*

But , I will list All 3 pinion angles for the above numbers with a 2 * +/Up Tranny angle.

Tranny--------Pinion------Pinion angle--

2*Up----------5* Down-------=/ -3* Down

2*Up----------9* Down-------=/ -7* Down

2*Up---------10* Down-------=/ -8* Down






Any of the Above Tranny/Pinion numbers if Correct will Represent your "True" "Pinion Angle" between tranny and pinion centerline.


EDIT; With your shaft 4* down and pinion 10* down that = a 14* Driveshaft/Pinion angle, but a Actual 8* Tranny/Pinion angle relationship with the tranny being 2* up. Confusing I know!

The Ujoint by "Physics" is designed to work best under load at a Parallel driveline angle. But lets not Forget its name. "Universal Joint", It peforms best within Parallel plane parameters but will work beyond those perimeters as well.

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thanks Sport ---

Now , we also have the crowd that uses the pinion measurement and the D shaft measurement....will their results be the same numbers ?

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thanks Sport ---

Now , we also have the crowd that uses the pinion measurement and the D shaft measurement....will their results be the same numbers ?

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No, You only gave One set of numbers between the pinion and the driveshaft.

Those were 4* down Shaft and 10* Down Pinion, witch would give you a "Driveshaft /Pinion angle of 14*

I will Edit my post to include that for a perspective.

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Ok Ok....Red....

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you are not helping Al.....

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just completely forget about the driveshaft measurement!

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A few of the responses are kinda funny.


Set your operating angle. Use your trans angle to set your operating angle, like the Rossler chart or 100 other charts.
Once you have your operating angle set, then set your pinion angle, like the Rossler chart or 100 other charts.



It's the terminology that gets everyone all up in the air, some state operating/pinion angle, some think both are combined into the same thing.

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I have the Rossler. Please post the other 99 charts. Or how about this --- 5 other charts?


this is the meaning of my thread

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just completely forget about the driveshaft measurement!

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you see why im asking? some swear by the shaft----some dont use the shaft in the equation !

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yea I used to think that way also! however dr diff the guy who messes with rears for a living says to go off the tranny and rear so I use that all the time now and forget the rest... less headache that way and it works! for the record I am at -4 right now...