Quote Originally Posted by techinspector1
"....transmission has 5 degrees of down angle and is much lower to the ground than the rear."

This right here tells you that all will be well because the trans output shaft and pinion can't be pointing toward each other if the trans shaft is lower. The driveshaft will be running upward as it goes to the rear and that's ok too, just as long as, like you said, you have the trans output shaft and the pinion parallel with each other.
Out of all of that I've learned in the last week.....it has finally sunk in....want to be between .5 and 1 degree of perfectly parallel on my driveshaft center line and transmission centerline. Thanks everyone.

You know....why does Spicer....and several other sites state that anything beyond a 3 degree working angle is unacceptable? I see trucks/jeeps with much more than that all of the time? I understand the reasoning behind being parallel but unsure of where they get the 3 degree cut-off for working angles. Puzzled.

I guess in a perfect world....because the IRS center section is stationary....if it were directly in line with the engine it could be coupled direct without u-joints? Unless slight engine movement on the mounts would mess things up? Just guessing out loud.

Thanks,
Dave