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The axle housing itself is a weldment: all mild steel, formed & welded together. Only the housing of the differential assembly is cast iron.

FTM, it can't be 105" unless tire bulge played a role - if measured about 4" above (hard)ground. Otherwise it's 103.3" (+/- 1/4", depending on tire brand).

That's an easy one, since we know the width of each component: A) The axle measures 78.9" between wheel mounting surfaces. (same as the M35 front axle, BTW) B) Each center disc has a thickness of 0.48". C) The stock 20x7.5" wheel backspace is 10.53". D) Stock 9.00-20 tires protrude from...

I which TM did you find that info...?:? I know it's a bit confusing, but following has already been confirmed to be correct: TM 9-2330-205-14&P , for the M200A1 & A2, lists the P/N MS19081-112 - (4) sets per trailer, which we know is 3984/3920 in the civi bearing world. And that same P/N...

Yeah, usually those CAD drawings you find in the Timken catalogs (and others too) aren't very precise. "B" is just the bare cone width; not considering the cage. "B" may-or may not be identical to "T", depending each bearing(set) design-and number. And in our particular case, only "T" is...

The angle "a" is smaller for the 39590/39520 (meaning the rollers are less conical, thus increasing the radial load capacity while reducing the max. axial load.) Dimension "T" is the same for both sets: 1.1875"

Richard, you do have the PDF TM9-2330-205-14&P downloaded, right? If you use the find-function for that P/N MS19081-112, it gives you the corresponding NSN, in the cross-reference indexes, at the end of the book, SECTION IV.

Well, it's still wrong...:neutral: The correct cup for the M200A1 is #3920 (Ø 4-7/16" x 15/16" width) and the correct cone for it is #3984 (Ø 2-9/16"). Both inner and outer hub bearing sets are identical. So it takes (4) 3920 and (4) 3984 for a complete axle rebuild. And yes, the M105A3...

Guy: 3rd row in your table (3920/2984) is a mistake. Should be 3920/3984.

Why else would someone post the typical "what's it worth" question (?) - after having said already Pretty sure he won't give it away for free...

Nah... really???

Looks good to me...

Yes, if for some reason that hole (bypass port) was actually too small you can enlarge it a tiny bit, but I would not go over 0.80mm !! For your reference (and because I was curious too...), I just measured two NOS MC, fresh out of the box: a 0.70mm needle fits trough, loosely. 0.80mm...

Please start a new thread, or we need to change the title of this one...

What part exactly are you referring to?

If the differential was a bit overfilled, or the truck not level, some oil will flow out once you start pulling the axle shaft (splined cap, in this case). Now, if oil has gotten inside the brake drum, your outer hub seal and/or the (kork)seal in the spindle keyway needs attention... This can...

Yes.

Nothing to do with the trailer; usually they don't have drive axles. What you have there is a stock M35 rear axle housing with at least one custom-made axle shaft. Typically that's what you need for a free wheeling (lock) hub, put on (one side of) the front rear axle, on a stock tandem. A big...

You are correct. The stock rear axle shafts are one-piece.

So none of you noticed something strange, there....???? That's on a M37 hub. Not this one.