Prop shafts

HingsingM37 · Post by **HingsingM37** » Sun Mar 16, 2008 7:30 am

Here is the first of many silly questions as I begin re-assembly. Which direction do the prop shafts go? Long side at the pumpkin or transfercase? Does it matter? When I took them off two years ago the short female yoke ends were at the transfer case side, but this looks different from a picture in one of my manuals?

knattrass · Post by **knattrass** » Sun Mar 16, 2008 8:13 am

My manual shows the stubbies towards the transfer case, long shafts towards the pumpkins...

spainex · Post by **spainex** » Sun Mar 16, 2008 8:20 am

Hingsing, Mine were installed the same as yours with the slip joints at the transfer case end. Although I don't believe it to be critical I would reinstall the same way as to keep the joints up high away from the elements(mud,water,etc.).

MSeriesRebuild · Post by **MSeriesRebuild** » Sun Mar 16, 2008 9:42 am

HingsingM37 wrote:Here is the first of many silly questions as I begin re-assembly. Which direction do the prop shafts go? Long side at the pumpkin or transfercase? Does it matter? When I took them off two years ago the short female yoke ends were at the transfer case side, but this looks different from a picture in one of my manuals?

The slip yokes ALWAYS go on the DRIVER end, or output yokes of the transfer case. The other or DRIVEN end attaches to the component that is being driven, in this case that is the differential yokes. The same is true on the intermediate shaft, the slip yoke attaches to the transmission ouput & the splined stub shaft to the transfer input.

HingsingM37 · Post by **HingsingM37** » Sun Mar 16, 2008 11:13 am

Thanks again

philin mt · Post by **philin mt** » Sun Mar 16, 2008 6:08 pm

I have always put the slips up next to the transfer to get them out of the drit and water, but then I am a old jeep man and what do I know??

....Phil in Mt

N1VSM · Post by **N1VSM** » Wed Mar 19, 2008 12:01 pm

MSeriesRebuild wrote: The slip yokes ALWAYS go on the DRIVER end, or output yokes of the transfer case. The other or DRIVEN end attaches to the component that is being driven, in this case that is the differential yokes. The same is true on the intermediate shaft, the slip yoke attaches to the transmission ouput & the splined stub shaft to the transfer input.

Sorry - but I'm a bit slow today

Just so that I have this right - the splined end (the shaft) is always the driven end, and the socketed (I know - wrong word) end is the driver? I'm such a visual learner ...

knattrass · Post by **knattrass** » Thu Mar 20, 2008 3:29 am

OK - now that I have my underwear on backwards.....

Drive Splined Shaft - long shaft with grooves - male shaft(3 diff lengths)
Slip Yoke - short stubby - female spline (3 all the same)

Slip Yokes - one connects to transmission output, one connects to RWD transfer case, one connects to FWD transfer case. I think these are the same part used in 3 locations looking at the manual.

Drive Shaft - long one connects to RWD pumpkin, med length one connects to FWD pumpkin, and the real short one attaches to the transfer case aimed at the transmission.

Yes?

MSeriesRebuild · Post by **MSeriesRebuild** » Thu Mar 20, 2008 8:22 am

knattrass wrote:OK - now that I have my underwear on backwards.....

Drive Splined Shaft - long shaft with grooves - male shaft(3 diff lengths)
Slip Yoke - short stubby - female spline (3 all the same)

Slip Yokes - one connects to transmission output, one connects to RWD transfer case, one connects to FWD transfer case. I think these are the same part used in 3 locations looking at the manual.

Drive Shaft - long one connects to RWD pumpkin, med length one connects to FWD pumpkin, and the real short one attaches to the transfer case aimed at the transmission.

Yes?

If I'm reading you correctly, this sounds right.

gwalker · Post by **gwalker** » Thu Mar 20, 2008 9:00 am

To add to this subject driveshaft alignment is important also, the slip yoke if removed, must go back on the same way so the u joint yokes on each end are inline to each other. Some slip yokes are keyed to only go that way, others are not allowing incorrect alignment and resulting in bad driveline vibration.

MSeriesRebuild · Post by **MSeriesRebuild** » Thu Mar 20, 2008 2:05 pm

All original M37 drive shafts have keyed splines, so unless you are dealing with a non-original replacement, you can't go wrong.

Prop shafts

Prop shafts

Re: Prop shafts

Re: Prop shafts