Drive shaft angle for Everett Morrison

[Jerry Clayton]

driveshaft angles are the angular differance between the pinion shaft,drive shaft and transmission mainshaft--the angle to the ground has nothing to do with it--
Now , having said that, if the only means you have fir measuring angles referances to the ground, you can correct the numbers to what the drive line is----

take the springs off the shocks and block the car/suspension to what you want for ride ht.
Adjust the drive angles---then figure out what distance you have for the spring at ride ht and go from there----you will probably be in the 10 in size

[DanEC]

Originally Posted by Jerry Clayton

driveshaft angles are the angular differance between the pinion shaft,drive shaft and transmission mainshaft--the angle to the ground has nothing to do with it--
Now , having said that, if the only means you have fir measuring angles referances to the ground, you can correct the numbers to what the drive line is----

take the springs off the shocks and block the car/suspension to what you want for ride ht.
Adjust the drive angles---then figure out what distance you have for the spring at ride ht and go from there----you will probably be in the 10 in size

Yeah - you need the angle between the transmission tailshft and driveshaft - and the angle between the driveshaft and the axis of the rear pinion shaft. The angle to the ground is meaningless. Turn the transmission yoke until the yoke arms are oriented top and bottom and put the angle gage on the bottom of the yoke arm and measure the angle from horizontal. Then put the gage on the driveshaft and measure it from horizontal. Subtract the two and your have the front deflection angle. Repeat this for the rear.

[Dwight]

I did not read the whole article but check this link out

http://www.carcraft.com/howto/91758/index.html


http://www.markwilliams.com/driveshafttech.aspx


Dwight

[mjhcobra]

Originally Posted by DanEC

Yeah - you need the angle between the transmission tailshft and driveshaft - and the angle between the driveshaft and the axis of the rear pinion shaft. The angle to the ground is meaningless. Turn the transmission yoke until the yoke arms are oriented top and bottom and put the angle gage on the bottom of the yoke arm and measure the angle from horizontal. Then put the gage on the driveshaft and measure it from horizontal. Subtract the two and your have the front deflection angle. Repeat this for the rear.

According to EM the pinion angle is to be 0 degrees. I verified by checking that the pinion angle in the loaded position was 90 degrees to the concrete slab or 0 degrees. I verified that the transmission output shaft in the loaded position was parallel to the concrete slab in the loaded position or 0 degrees. If pinion angle is 90 degrees to the slab and the transmission is parallel to the slab, then the drive shaft angle would be what the angle finder is reading, which is 7 degrees. This is only possible I believe, when the pinion is perpendicular to the slab and the trans is parallel. Otherwise I would need to add or subtract from the drive shaft angle.

Most of the cobra pictures I see indicate the rear tire slightly inside the top of the fender flare or even with the flare.

I have not purchased my wheels and tires jet, but may need to soon to check clearances. I will be running 295/50r15 with 9.5" rims on the rear with the normal backset. Anybody foresee any clearance issues?