1) Drive-shafts are used on FWD but Prop-Shafts are used on RWD or 4WD. 2)A Drive-Shaft has final drive via a CV joint but a Prop-Shaft has final drive via a Differential. 3)A Drive-Shaft is smaller, lighter and saves space by not having a transmition tunnel.
Unbolt the prop shaft.
It allows a reduction in transmission tunnel height.The critical speed of the total prop shaft arrangement is higher without increasing the diameter (reducing shaft whip).
This would depend greatly on your prop shaft... Water craft, Airplane... Car? But two test that should apply to all categories might be: vibration and fatigue.
About half a stone give or take a few pounds
right behind the prop, on the same shaft
the purpose of the hair shaft is to protect and moisturize the scalp.
This depends entirely on what make model and year the machine is as well as why it is being driven. It is not safe to use it as a loader with the prop shaft missing, but it might be if it is just being moved.
About 3 foot
the purpose of drive shaft is to assist in the generation of electric power in the wind mill
The shaft itself rarely needs to be replaced, but it is often cheaper to replace than repair. The only thing that `requires`replacement of the shaft is if the shaft itself is bent or damaged. Joints, slip yokes and such can be changed.
The Prop shaft (front drive shaft) has a ball type cv joint that sits in bearings that connects to the transfer case. This is most likely shot and you need a front prop shaft (front drive shaft) complete with rubber boot and differential cv universal joint.