Drive shaft angles

deadbeat said:

Sweet, that means I should be able to get both of them around 1* and should see a difference, thanks for the help.

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Ruger_556 said:

This has all the information you need http://www2.dana.com/pdf/J3311-1-HVTSS.PDF

Here is the section that applies to what you are doing


When you rework a chassis or install a new driveshaft in a vehicle, make sure that you follow the basic rules that apply to universal
joint operating angles:
RULE 1: UNIVERSAL JOINT OPERATING ANGLES AT EACH END OF A DRIVESHAFT SHOULD ALWAYS BE AT LEAST 1 DEGREE.
RULE 2: UNIVERSAL JOINT OPERATING ANGLES ON EACH END OF A DRIVESHAFT SHOULD ALWAYS BE EQUAL WITHIN 1 DEGREE
OF EACH OTHER (ONE HALF DEGREE FOR MOTOR HOMES AND SHAFTS IN FRONT OF TRANSFER CASE OR AUXILIARY
DEVICE).
RULE 3: FOR VIRTUAL VIBRATION FREE PERFORMANCE, UNIVERSAL JOINT OPERATING ANGLES SHOULD NOT BE LARGER
THAN 3 DEGREES. IF THEY ARE, MAKE SURE THEY DO NOT EXCEED THE MAXIMUM RECOMMENDED ANGLES.
A universal joint operating angle is the angle that occurs at each end of a driveshaft when the output shaft of the transmission and
driveshaft and the input shaft of the axle and driveshaft are not in line. (See Fig 1)
The connecting driveshaft operates with an angle at each universal joint. It is that angle that creates a vibration.

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jsfrmsj said:

This is probably a stupid question, but how do you measure degree angles? Is there a tool i need to buy?

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