The Stovebolt Site Forums The Parking Lot Big Bolts Seals for PTOs...they leak pretty bad.

One thing I noticed the first time I fired up my 1959 Viking with the tranny cover off was that the trans rattled really badly in neutral. Turned out that after I changed the clutch, I undid the plug on the tranny, and maybe a pint of oil drained out....

Well! The truck had been sitting for something like 5 years, and who knows how it was treated before that. So, I refilled the tranny and behold! Oil does wonderful things! The rattle went away.

Now I see why it was so low on oil after all these years. The tranny has two power take offs, and they both leak. One quite badly, leaving quite a spot. Good thing I'm not parking the thing on a paved driveway.

One of the interior PTO knobs is red, and the other one is black, and says "Spicer" on the knob. Both the PTO's look the same. I'm familiar with Dana/Spicer from my work on Jeeps. Has anyone ever replaced seals on PTO's? There seems to be quite a leak around one of the spinning PTO shafts.

Neither of the PTO's are connected to anything at present. So one solution is to simply take them off and install cover plates. But I plan on using at least one of them to power a PTO winch one day, and maybe use the other to run a water pump, so I would like for them to work and not leak, eventually. I've searched the internet for seal kits or rebuild kits for PTO's, but had no luck. Does anyone know if kits or available, or does one just need to find the seals individually?

Thanks.

I know on my transfer case on the Chevy I once owned that I went to a bearing speciality shop with the case numbers and they matched all the bearings and seals I needed so I can imagine they can match up the seals for you also. Most of the big companies supply the auto industery with seals and bearings.
62Blue
Don

If I were you I would get two tin covers pull the PTOs off and carefully disassemble them mark all you pieces before you take them apart because they can be assemble in many different ways, as them same parts will make many different PTOs depending on how you put it together.
Clean all your parts and use a magnifying glass and record the numbers on the seals and bearings also measure the shim packs they will most likely be metal or plastic gasket like stuff used to set bearing preload. Then take the parts and your recorded info to a bearing supply house and they should be able to set you up with seals, bearings, shim stock, and any knowledge about shimming the bearings you may need to rebuild you PTOs.

Hey Viking: one quick question. Are these single gear PTO's or double gear?
If they are single gear as I suspect then you do not need Roy's advice on the disassembly because you can only put it together one way. OK, you "could" put the gear in backwards but I assume you are not that inept since all you have to do is look at it to know. The shaft seals are available at any Chelsea/Muncie dealer and most truck equipment houses. They are inexpensive and easy to replace. Simple drive fit or a chevron style if a newer model. These are no-brainers.

The double gear models can be re-assembled in various configurations but again, not if you pay attention to what they looked like before taking them apart. It is the clocking of the shaft that is important and gear forward or gear to the rear.

Send me the model numbers or photos or anything else you have. I can probably help you.

Thank you all for your help!

Hmmmm...I'm not sure about the terms "single gear" or "double gear" in regard to the PTO's...how would I know? Single speed or two speed PTO's? Or would it have to do with how many drive gears are involved between the tranny and the PTO shaft?

I'll have to take a look for model numbers on the PTO housings...I cleaned a couple inches of caked oily dirt off of them a couple months ago when I disconnected the cables prior to pulling the tranny to replace the cluth...but didn't notice any casting numbers at that time...but I wasn't looking for them either.

We do have a lot of truck equipment shops around here due to the oil and natural gas field industry that is the main biz around here. I didn't know if old 1959 type PTO's would be obsolete or not.

If nothing else, it would be no problem to take a couple digital photos. Either way, it makes me feel better to know that it won't be a big problem to fix them. Once I get the truck fixed up the way I want, it's going to spend a lot of time sitting at my backcountry place from early spring to late fall, being used intermittently for water and firewood hauling and such..I would hate to have to top off the tranny every time I drive it!