i also posted this in the tranny/drivetrain section, but thought i would get more exposure here...so, sorry if you saw it twice.

ok, for some reason, i am having a heck of a problem understanding exactly how to set the pinion angle on my spohn TA.

the directions say to subtract the reading of the pinion from the reading of the driveshaft, and that is the pinion angle, for which i am looking to get -1 degree.

here are two pics of the indicator, taken from the passenger's side of the car...



and...



now, if i am reading the directions correctly, i take the driveshaft angle which is 2.5*, and subtract from it the "pinion" angle, which is 3.5*. that gives me -1*.

is that correct? or are the readings taken relative to something else? if you have any light to shed on this, PLEASE help. i have done a couple searches, and havent gotten any concrete answers. thanks...

-brian

 

Here is what I did. I took the driveshaft out and set the base of the angle finder on the yoke. Set it to -4 degrees. The day that I set it to that I got 1.64 60' times consistently on MT et drags. That was compared to 1.8's before with the stock torque arm.