drive shaft help

[boonie]

I did the trans OH ,had both front &rear drive shafts out, I put them back the way they were. the front diff drive shaft has the slip joint end bolted to the transfercase, & the rear diff driveshaft also has the slip joint end bolted to the transfercase is this correct ? cant find this information thanks boonie

[fishtail]

The slip ends of both driveshafts are at the transfer case.

Scott

[boonie]

thank you!

[MrNeutron]

The slip joints on my M715 are located at the axles. That's the way it was when I got it. And I dont see any need to change it.

And speaking as a former driveshaft engineer who worked at Dana, the slip joints on an internal slip driveshaft are usually located at the axles.

[fishtail]

To quote TM9-2320-244-34 Sept. 1968

09-01. General

Par. 2

The transfer case-to-axle propeller shafts also have splined slip joints at the transfer case end to allow for variations in the length caused by vehicle spring action. The intermediate shaft is of fixed length.

Emphasis mine.

Scott

[Beast]

I just went back and looked at pics of my M715 during tear down and both had the slip yoke end at the transfer case. On my off-road Jeep (78' Cherokee) both are at the axles. I don't know why the military went with the facing that direction?

[Don Cavey]

I just checked and both of my propeller shafts have the slip joint to the front of the vehicle. I did see in one TM an illustration that showed the rear shaft having the slip joint connected to the transfer case.

Hmmm.

[Duane]

I don't know if there is a standard on slip joints on driveshafts, I have seen the slip joint on the axle end and the transfer case end. it seems that most of the Fords and GMs that we have at work with slip joint driveshafts, the slip joints are closer to the transfer case. would like to hear the reasoning either way what is correct.

Duane

[Mikel]

I don't think it matters, except that the axle side is more exposed to impacts from rocks, cyclists...