Technical Engine angles??

Didn't see it mentioned...
A 'U' formation can also be used. Tail shaft and pinion both pointing up or down. The angles of the two U-joints operating angle is what matters. No less than .5° to keep the bearings in the U-joint spinning/lubricated and no more than 3.5° to keep the U joint from binding and knuckling over.
And the front and rear U-joints should not be more than .5° difference. More than this and the input and output speeds will not be the same. Driveshaft velocity will always be different due to the sinusoidal affect from the U joints function.

Use this handy tool to quickly find your operating angles.
http://****erparts.com/calculators/driveline-operating-angle-calculator

Don't forget you will also want to make sure the U-joints are also in phase in plan view(looking top down). This is usually ***umed to be correct but always worth checking, especially with drivetrain swaps.

 

I respectfully disagree. If one knows the desired ride height of the ch***is that should first be set..then the engine trans
placed at desired angle and then the pinion angle adjusted to suit. In this case, it seems the OP has a stock or near stock vehicle, but with unleaded suspension. Hence the recommendation to level the frame as a starting point to get the engine/trans angle correct. It seems the new motor mounts are affecting the engine/trans centerline. Once that is corrected, likely as not, the pinion angle will be correct or very close.

Ray

 

I get what you mean now, it should be level, but for some reason it is not. I stand corrected.

 

Thanks for all the replies guys I appreciate all the help!! Here are some pics of my motor mounts I have shimmed the crossmember about 1/2 inch to correct the angle a bit and it helped alot but I don't want to short cut anything here so if the mounts need correction ill have to fix it.... Also if its worth mentioning I do have a bell tech gto spring and shock set up supposed to be stock ride height but on my 15s the car sits slightly higher in front without p***engers and looks kinda funny to me haha thanks again this has been a great learning experience so far!

 

The mounts

 

Also the crossmember was moved rearward on the frame when the swap was made from 2 speed to the th400

 

Did you put the driveshaft in , or at least the yoke? Might be pretty close to the floorboard.
Pictures?