Front Drive Shaft Update

[Max]

I completely agree. Perhaps an appropriate “I fixed what INEOS couldn’t” T-shirt.

Shafted?
Not now!

 

[HeavyFoot]

“I fix shafts”

 

[AFdude412]

If the shaft made by Sven or the one in the works by Dokatd function as expected then highway speeds of +80 mph are not an issue. This is because the CV at the pinion combined with the double cardan joint at the transfer case will theoretically not produce any vibrations.

However, a shaft with single u-joints at each end will have vibrations/harmonics and is not recommend for highway use. A shaft of this style is currently sold by Agile Off Road.

At least Agile's rear shaft is vibe-free though. I've been running it for a month now. So far so good!

 

[TCMColorado]

At least Agile's rear shaft is vibe-free though. I've been running it for a month now. So far so good!

Good to know! Given the lower joint angles for the rear shaft this makes sense.

 

[C-Mack]

I recall from a post a while back didn’t Sven have vibration issues with this setup initially? What refinements did he make to cure the vibration issues? Also, some have mentioned on a lifted vehicle the angle at the transfer case can still put a double cardan close to its limit and may wear faster as a result.

The question is, will a double cardan/Rzeppa setup at least outlast the the stock driveshaft before it cause issues or vibrations? If stock shafts are failing somewhere between 7K & 25K for stock/lifted vehicles can we hope to get a good distance past that with these hybrid shafts? It’s certainly the goal so fingers crossed we finally have a couple of decent solutions coming.

 

[HereinDaRockies]

At least Agile's rear shaft is vibe-free though. I've been running it for a month now. So far so good!

Did their rear shaft improve any of the resonance or vibration that occur during certain speeds on the highway? Granted, I am not sure the rear driveshaft is responsible for what I am describing

 

[Dokatd]

I recall from a post a while back didn’t Sven have vibration issues with this setup initially? What refinements did he make to cure the vibration issues? Also, some have mentioned on a lifted vehicle the angle at the transfer case can still put a double cardan close to its limit and may wear faster as a result.

The question is, will a double cardan/Rzeppa setup at least outlast the the stock driveshaft before it cause issues or vibrations? If stock shafts are failing somewhere between 7K & 25K for stock/lifted vehicles can we hope to get a good distance past that with these hybrid shafts? It’s certainly the goal so fingers crossed we finally have a couple of decent solutions coming.

I suspect Sven's suffered from being homemade and built from spare shafts. I am speculating on this, but photo evidence seems to agree. I have to assume he has refined the assembly at this point.