Has anybody ever tried using CV joints instead of u-joints on a driveshaft? I assume there must be a very good reason that I haven't seen it.
The angle on the lower u-joint would be too high due to the compound angle made by centering the differential in the chassis. In a double cardan setup, the cv is at an angle and the regular u-joint is kept near 0 by tipping the differential to point at the double cardan. The double cardan would run fine but the u-joint would create all kinds of vibration with nothing to cancel it out, hence the need to run 2.Why 2?
Audi, Volvo, and BMW have been doing it for years, they call it a propeller shaft, but they have very little angle, and the boots are always where the failures begin.Since then, I read somewhere that Audi has been working on putting CV drive shafts into an all wheel drive production car. Maybe it will be possible some day, at least on the street.