Which driveshaft type - CV or single cardan normal style?
#1
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Which driveshaft type - CV or single cardan normal style?
I am almost at the point of welding my rear axle spring perches on, and i only want to do this once. My truck is very low, with a frame height of around 21 inches, but i may want to go higher someday when its not my daily driver anymore.
Would it make sense to install a cv type driveshaft now, and weld the perches in with the pinion pointing at the transfercase flange, so it will be relatively simple when if/when i lift higher someday?
I have read 4crawler's writeup on driveshaft angles, and it is very helpful, but didnt answer my question about which is more appropriate for my needs.
Would it make sense to install a cv type driveshaft now, and weld the perches in with the pinion pointing at the transfercase flange, so it will be relatively simple when if/when i lift higher someday?
I have read 4crawler's writeup on driveshaft angles, and it is very helpful, but didnt answer my question about which is more appropriate for my needs.
#2
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I found that with the drive shaft angle more than 12-15 degrees, a CV shaft worked better. In my case, at 12* with single cardan and stock length shaft it was OK. But when the shaft was shortened 6" for the dual t-cases, the angle went up to about 15* and it no longer ran smooth. So depending on length and angle, that is about where you need to switch over. A CV will work at most any reasonable angle, so you can run them at lower angles, too. Only "gotcha" with a CV is that as you change ride height, you need to change the pinion angle to match the shaft angle. So they are more "finicky" than a single cardan where you can raise and lower all you want and not affect the alignment.
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