Deuce PTO Drive Install

[machinist75]

I'm going to install my winch on my Deuce in the next couple of days and need some advice on the pto. Is it just a matter of bolting it up and calling it done, or like everything else in life is it more complicated. I know when you putting in new rear end gears the have to be shimmed for backlash and what not. If anyone can give me any advice it would be greatly appreciated.

Thanks
Mike

 

[AceHigh]

More complicated. It is shimmed with gaskets, but they are available at truck supply outlets. Put it in place, bolt it down and check for gear binding. Remove, repeat as needed.

 

[AceHigh]

They sell the gaskets in two sizes, a thick and a thin one. I can't remember just what mine took but the whole task was pretty easy.

 

[Capt.Marion]

Here's some reading on shimming the PTO properly upon installation:
https://www.steelsoldiers.com/showthread.php?18909-pto-gasket-shim-napa-part-numbers-anyone.html
https://www.steelsoldiers.com/showthread.php?68122-pto-install-question.html
https://www.steelsoldiers.com/showthread.php?19399-winch-pto-gaskets.html


I believe the PTO installation is covered in a TM. I would check in the Org. Maintenance Manual (the -20) and see if it covers the PTO removal/installation in there anywhere.

 

[machinist75]

Thanks guys, I guess that's why the young gentleman from Oklahoma gave me 3 or 4 gaskets when I got it from him.

 

[m16ty]

It is all but impossible to check the backlash per the TM with the trans in the truck. There's no room to get a dial indicator in there between the PTO and the frame. I always just do mine by feel. Remember, it's better to be a little too loose than too tight.

 

[machinist75]

Is it true you should install the pro first? I was doing the winch #1 then pto #2.

 

[gringeltaube]

Is it true you should install the pro first?......

No, do as you prefer... and install drive shaft, last.

More on adjusting PTO input gear backlash, here.


G.

 

[Bill W]

just did mine when I swapped trannies.
Like M16ty stated, I also do mine by feel. I've done three in the last 15yrs this way ( 2 fuel trucks and one M-37 ) and they're all still running fine today.
I took the tranny top off and the pto cover, I inserted a screwdriver so I could keep the pto drive/input gear from moving, from there I "felt" for very slight back lash on the tranny counter gear. For what its worth, on mine I needed one cork ( from the m-35 tranny gasket set ) and one paper gasket ( from my M-37 pto gasket set ) to set the lash.

 

[porkysplace]

No, do as you prefer... and install drive shaft, last.

More on adjusting PTO input gear backlash, here.


G.

It looks like this thread had some good links but all are dead now.

 

[gringeltaube]

Thanks for pointing this out.

All links resurrected, now...

 

[rustystud]

For what its worth, on mine I needed one cork ( from the m-35 tranny gasket set ) and one paper gasket ( from my M-37 pto gasket set ) to set the lash.

I just have to correct this statement. You never use a "cork" gasket to set backlash. That is only used for the stamped steel cover. All backlash adjustments must be done with the "paper" gaskets. Cork over time will shrink and cause problems besides leaking.

 

[Floridianson]

Fel-Pro #55380 is one but I don't remember the thickness of that number. Last time I did it I used one thick and one thin gasket and used a light coat of High-tack spray. Found this looks like there might be three 55380,55379, 55372 in different thickness. Believe the 380 is the thick one. https://www.oreillyauto.com/shop/b/.../5f5c9ef65798/1988/chevrolet/k2500-pickup-4wd

 

[tobyS]

The Chelsea PTO for the five ton (939) comes with a single fiber gasket that seems to be the perfect thickness from the start. Is there a fiber one for the deuce available? I second what Rusty said about cork. (edit...fiber may not be the right word, it might be an asbestos replacement.)

 

[winfred]

fiber is more of a generic term covering not cork or embossed metal or rubber

 

[rustystud]

Fel-Pro #55380 is one but I don't remember the thickness of that number. Last time I did it I used one thick and one thin gasket and used a light coat of High-tack spray. Found this looks like there might be three 55380,55379, 55372 in different thickness. Believe the 380 is the thick one. https://www.oreillyauto.com/shop/b/.../5f5c9ef65798/1988/chevrolet/k2500-pickup-4wd

Thanks for looking up those gaskets ! I'll be making a trip down to Oreillys this week.