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Your MRAP wheels have the DOT stamp, too. And you aren't modifying anything on the wheel itself....

You want the ones stamped "973", with the red color ring.

The plate will deform or bend long before those 10 bolts rip out. But hey, use 1" bolts, if it makes you feel safer. Just let's not forget: all these modifications are OK for "off road use only".......

Thanks, hope it helps... (I just edited your post to add the missing, lower portion of my drawing) Actually any machinist should be able to make these adapters, having only that PDF file.

Here is one (low-cost) option, using 3/4" hardware.....

While you are in, there... Replace that inner axle shaft; find one that is complete, WITH washer (!); Check the surface of the shaft for wear, where the seal lip rides; Get the correct seal retainer - or modify the existing; Replace the oil seal.

That's correct. Let me find my post about it... Meanwhile.... Yes, the seal retainers for both early style, CV-joint axle shafts have an integral rim, with a copper/brass thrust washer (P/N 7521763), press-fitted to it. The U-joint shafts come with their own steel spacer/washer, pressed-on...

That particular TM you posted is for the HIAB Model 8108/8108-2 material handling crane, which came on the M985E1 HEMTT, only. The M977 MHC is covered in the HEMTT (#279) manuals: TM 9-2320-279-10; TM 9-2320-279-20 and TM 9-2320-279-24P-2

Correct, 10 lug holes on 335mm. And if we are talking about the steel wheels, they actually are called 12-bolts, since both halves are held together with those 12 (massive) M22*1.5 bolts/nuts: And this is how they look like (with 395/85R20s) on a M35A2: Cheapest I've found so far...

Really? What does a hydraulic pump do in an air-assisted system?

Moved.

MRAP/MTVR, bolt-together 12-bolt, 20x10" steel wheel, 10-on-335mm bolt pattern, 281mm pilot hole.

Yes, on the diamond-shaped cover. A so-called "valve".

It may work but pushing/pulling at that much of an angle you are putting a lot of strain (radially) on that shift rod! Not so if you had a "J"-shaped handle, similar to the original set-up.

All WN-7-28 winch PTOs came with 2 forward and one reverse gear, with two neutral positions in between them, in the same order as David put it: R-N-L-N-H High speed to low speed ratio is 2.25:1

No, go up one size... It's a 7/16"-20 thread.

I'm sure you didn't mean the overall tire width (?) While all three of those sizes are allowed to be mounted on the stock 7.5 x 20 rims, a typical 12.00-20 bias ply tire is almost 1½ inches wider than the stock 9.00-20s; 12.00R20s even more so. Our stock deuce wheels allow for a dual spacing...

All of the many M-Series trailers - and their corresponding TMs, listed here: https://www.steelsoldiers.com/threads/compilation-of-trailer-tms.209582/

Thanks to the many members who have contributed to this... (!) we now have over 100 trailer manuals already uploaded to our own library! But since everything on SS gets posted only in chronological order (by default) - it became difficult to find any particular TM without scrolling up- and down...

Field and sustainment maintenance manual (incl. parts & tools) for M871R; M871A1R & M871A2R, semitrailer, tactical, breakbulk/container transporter, reset, 2-axle/8-wheel, 22½-ton -- (SEP 2008 ) Edit: This TM with all his changes has been superseded by TM 9-2330-335-13&P published Dec 2015