Why?

[ducatijosh]

Why do we swap out our u-joint axles for cv axles and then swap our cv driveshafts for u-joint driveshafts. There’s no consistency.

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[JesseT]

Why do you park in a driveway and drive on a parkway?

 

[swampflyer]

why does Hawaii have interstate highways?

 

[Whiskeybiskit]

Why is a shipment through ship called cargo, and through car called shipment?

 

[Riotfunk]

Why do they put Braille dots on the keypad of the drive-up ATM?

 

[TheBirdie72]

 

[grimmjeeper]

 

[ducatijosh]

Lol. Love it.

 

[chevymitchell]

 

[chevymitchell]

Why do we swap out our u-joint axles for cv axles and then swap our cv driveshafts for u-joint driveshafts. There’s no consistency.

Axles - We swap these out to gain strength in high steering angles.
Driveshafts - We swap these out to gain droop/drop angle. Usually, these are upgraded to a larger 1350/1410 joint and are nearly always a double Cardan.

 

[grimmjeeper]

Axles - We swap these out to gain strength in high steering angles.
Driveshafts - We swap these out to gain droop/drop angle. Usually, these are upgraded to a larger 1350/1410 joint and are nearly always a double Cardan.

Yep. Factory rzeppa joints in the driveshaft are weak and don't handle significant angles. Double cardan ujoints, especially 1350 or bigger, are stronger and handle more angle. The factory joints are decent at reducing vibration. And they are probably cheaper.

Inside the axle, the CV shafts like RCVs have a different style of CV joints that are stronger and can handle the angles in the knuckle. Factory u-joints in the knuckle bind at steep angles. But they're cheap and good enough. In Jeeps with full time auto 4wd, you actually get CV joints in the axle from the factory.

 

[JesseT]

Axles - We swap these out to gain strength in high steering angles.
Driveshafts - We swap these out to gain droop/drop angle. Usually, these are upgraded to a larger 1350/1410 joint and are nearly always a double Cardan.

Jeez, look at Mr. Fancy Pants here with a real answer.

(For real though OP, listen to this guy. I've only been here a few months but that's long enough to have learned that this dude knows things.)

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