The Stovebolt Site Forums The Parking Lot Big Bolts Adding rearend grease to 2 speed

On my 52 6400, I had to replace the axle seal. My question is this. My rearend plug is boogered up from the previous owners. It's almost impossible to get any kind of wrench to work at all. On the front of the rear and on top of the output shaft, there is another plug. Can that also be used as a fill point. Is that 2 speed rear open all the way back to the rear cover. If so, then I will be able to get grease all the way out to my bearings in the hub. Hope thats clear enough.

I have no experience with the two speeds, but the problem I see with using a different hole is that you could easily add to much oil and then as it heats up you may have a fair chance of blowing your hubs oil seals out. That would make for quite a bit more work.

I bet your local parts house could get you another plug if you could manage to get that one out.

Jeff

Huh, Would not wanna do that. Point well noted. Thanks for the response.

Mike,

Is the plug an external square (male) that's been rounded or is it an internal (female). If it's external you might be able to weld a hex nut to whats left and get a socket on it. Does your truck have a removable rear cover? You can remove it and drill out the old plug.

Let me know if you need help!

Mike B

Mike, What about resealing that cover back. Will R.T.V. sealant be o.k. or can a new seal be gotten. I only have a week left. Gotta be a quick solution. I like the welding of a nut on the end. And yes, it's a external square plug. If you can weld, you could be my hero.

I think the plug is cast iron, at least that's my first guess from looking at mine.
Someone brazed a rod on mine when the corners rounded off.

If I was in your situation I'd weld the corners enough to remove it, finish welding the corners and file or mill it square again; as good as new.

I doubt you have much luck finding a new one, but it's worth asking around.
If it comes down to it a new one could be made.

Grigg

We haven't used gaskets on rear ends in many years. RTV works. If the back cover comes off, I would take it off so you can work on it. There is a good chance that just welding something to it will break it loose. The hot plug will expand and break the rust loose. Cool it and it will probably come out.

Our local store used to have a huge case filled with a few hundred different types of plugs, from transmissions to engines, rears, etc. They even had copper gaskets for a variety of different sizes. Definitely worth looking around.

The plug is the same as used on the old 1/2 ton on up. You can get them at any of the specialty parts stores & I'm thinking it is available in the Help line of parts at many parts stores. You can usually get the old plug out with a hammer & chisel.I think What you are looking at on the side is the pinion side thrust adjuster.

Thanks for all the suggestions. I put a pipewrench on the plug and was able to get a bite on it and got it out. John has a parts truck that I can get it off of to replace the old one. I had even filled the grease perfect. It was right at the plughole. Thanks again for all the great advice again.

After I've been in the rear wheel bearings and refilled the rear end I usually go park on a side hill pitch so that oil runs into the axle cavity, gennerally it does not flow thru the axle tube very well, the axle while spinning will carry it out there, unless you over fill the rear end.

Ever heard of a pipe wrench? They work wonders on all surfaces. My hydraulic fill plug is rounded to a conical pyrimid and it still takes it out.