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Strange red knob to transfer case?!

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Old 02-10-2010 | 06:14 AM
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Originally Posted by fantic238
WAIT! i got it! it's a reversible PTO! when you plow you need to go back and forth many times, so to keep the tranny always in Drive and don't stress it you reverse with the ****.
ok, but what if i'm on part time, what is the benefit of try to reverse only rear wheels? or I shoulbe driwing 2wd rear to use all the advantages of this pto, that is also why i couldn't move it cause i never drove 2wd
Old 02-10-2010 | 08:16 AM
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Originally Posted by fantic238
Wow... that's a four bolt single gear Power Take Off on what seems to be a NP 207 transfer case... The transmission aperture has been closed with a plate and the shifter probably is just to disengage power to the rear drive shaft, or maybe if it's a two gear to invert shaft rotation.
Interesting is also the drive shaft with the slip yoke on the shaft, i wonder if this is an aftermarket mod or if it is from the factory.
What does it do when you shift it?
I was going to say that next, but i thought i'd let someone else try and figure it out first...
Old 02-10-2010 | 08:32 AM
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You are missing the PTO output...

There should be an output for that PTO box. It was used to drive various outboard equipment. It is an aftermarket conversions. The XJ was sold as a suburban/rural family truckster. Also some companies offered conversions like that to use Jeeps as small tractors. You could connect the output to pumps, farm implments, saws, hydraulic units, etc.

They were more common on the CJ's. Google Agri-Jeep and you will get an idea of what I am talking about.
Old 02-10-2010 | 08:56 AM
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Originally Posted by whowey
You are missing the PTO output...

There should be an output for that PTO box. It was used to drive various outboard equipment. It is an aftermarket conversions. The XJ was sold as a suburban/rural family truckster. Also some companies offered conversions like that to use Jeeps as small tractors. You could connect the output to pumps, farm implments, saws, hydraulic units, etc.

They were more common on the CJ's. Google Agri-Jeep and you will get an idea of what I am talking about.
I think it is missing the input gear, under the plate. The two outputs are one towards the TC and the other to the drive shaft.
Old 02-10-2010 | 09:10 AM
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thats a pto the previous owner might have plowed snow with it....
Old 02-10-2010 | 10:00 AM
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that small shaft above were it says pto lookes like 3/4 inch dia and 2 inch long... when you engage pto the drive shaft stops and that little one spins... shame its pointing to rear... if it was pointing to the front.. would be great power source for a wench from hell..

If i was you... i would find the stuff to put it back to stock and put that up for sale.. its prob worth 200- 300 bucks easy to someone that would love to have a pto for there jeep...

Last edited by Hommersimpson; 02-10-2010 at 10:04 AM. Reason: add more
Old 02-10-2010 | 10:42 AM
  #22  
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Originally Posted by fantic238
I think it is missing the input gear, under the plate. The two outputs are one towards the TC and the other to the drive shaft.
You are thinking backwards....

That plate is where the second output goes. The input to the PTO box is the shaft from the transfer case. The power for the PTO box is derived from the drivetrain, not the other way around.

The first output goes to the rear driveshaft. The second output(which is missing) Could have gone from that plate straight out to a rear engagement, or possibly to a gear box under the Jeep to a front output.

I had a similar set-up years ago on an International Harvester pick-up. It had a standard splined farm implement connection in the rear bumper and a connection at the front to attach various pieces of equipment. The only ones we had were a hydraulic winch pump, and a belt drive unit for driving our saw for grape poles. There also was a hand throttle unit in the truck so you could set the RPM for operating stationary items above idle without someone having to sit in the truck.
Old 02-10-2010 | 10:51 AM
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I had one of those on my 1974 J20 jeep and it was for the Winch...Tj
Old 02-10-2010 | 11:13 AM
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Originally Posted by whowey
You are thinking backwards....

That plate is where the second output goes. The input to the PTO box is the shaft from the transfer case. The power for the PTO box is derived from the drivetrain, not the other way around.

The first output goes to the rear driveshaft. The second output(which is missing) Could have gone from that plate straight out to a rear engagement, or possibly to a gear box under the Jeep to a front output.

I had a similar set-up years ago on an International Harvester pick-up. It had a standard splined farm implement connection in the rear bumper and a connection at the front to attach various pieces of equipment. The only ones we had were a hydraulic winch pump, and a belt drive unit for driving our saw for grape poles. There also was a hand throttle unit in the truck so you could set the RPM for operating stationary items above idle without someone having to sit in the truck.
Have a look at the pdf file i posted it says on page 6: "the power take off imput gear" and shows a gear coming out from the flange where the plate is. This flange that can have 4/6/8 bolts is designed to be meshed to a transmission pto drive gear and transmit power to the output shaft/s.
I just checked my scoutII and the gear box has this plate where you can bolt on the PTO, i think in the cherokee it is being used backwards, only for disengaging or reversing the drive shaft.
Old 02-10-2010 | 12:03 PM
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Originally Posted by fantic238
Have a look at the pdf file i posted it says on page 6: "the power take off imput gear" and shows a gear coming out from the flange where the plate is. This flange that can have 4/6/8 bolts is designed to be meshed to a transmission pto drive gear and transmit power to the output shaft/s.
I just checked my scoutII and the gear box has this plate where you can bolt on the PTO, i think in the cherokee it is being used backwards, only for disengaging or reversing the drive shaft.

The .PDF is a about transmission mounted PTOs.. the basics are the same.. but not quite identical to this situation. This PTO is an aftermarket set-up. It goes inbetween the T-case and rear driveshaft, so that you didn't need to replace the transmission. This aftermarket unit would have installed in the same basic way for a 2wd truck as it does here. Where as the PTO referenced in the .pdf is transmission driven so that the rear driveshaft is completely separate.

The .pdf though does a fairly good job of illustrating what the missing output housing would have looked like. Pages 4 and 5 have pictures of different types of output housings that would have bolted in place of the plate in the OP's picture.

Like TrekkerJim said... These were used to drive front and rear attachements. In his case a PTO winch. I have also seen capstan winches and other attachments driven in a similar manner.
Old 02-10-2010 | 12:09 PM
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At this point i don't know. I seriously doubt that it is for a winch. How would you operate it with the Jeep moving?
I'm searching for some other infos...
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