Tire mounting

[jeeperjoe]

FYI My understanding is that the small (~3/16") hole located between two of the lug bolt holes indicates that that rim has the safety rim.

Personally unless I'm installing bead locks or bead clips then I don't need to worry about the flaps. Is that correct, Wes? AND unless the tire is marked BL, BLX or is a Combat tire (they're marked Combat) or a Tactical tire then they shouldn't/u] be used with Bead Locks or clips. The manual is sort of confused on that point.

[Bretto]

I got them all mounted and installed on the Jeep this morning. It was easier than anticipated to mount them.
Its night and day going from the BFG tires to the NDCC's, it feels like I have power steering now.
I mounted them with the dot, provided by STA, at that valve and ran them. I didn't feel any vibrations or anything at 50. I'm not thrilled by the huge warning they molded on them but all in all I'm happy.
It looks a bit more original now with these shoes on.

[wesk]

Bretto,
Just remember that the great power steering feeling you now feel translate to less traction!!!! So when the street is wet slow down!

Joe,
Not true. That hole still remains to be properly explained some day, but to indicate safety bead it does not.

The 16x5" Willys truck wheel (without any safety bead) has the same hole.

The rest is true. If the tire is not approved for use with bead locks/rings then they should not be used with them.

[jeeperjoe]

Wes,

Hmm. Interesting about the small hole. It does seem strange that they'd use a HOLE to indicate a feature rather than just marking it with some kind of lettering. (This was in the days when people in this country actually understood English and before we tried to apply Internationalized picto-graphs to everything).

I had previously thought that the hole was something that was used during the manufacturing or assembly process. Perhaps to hang the wheel and tire from it(?). But if so, why didn't they do that on civie Jeeps? And, if that's what the hole is for, why isn't any other car company doing it? KH makes wheels for most of the auto makes but AFIK only these Jeeps have the hole in the rim! So I guess it remains a mystery!

I haven't taken the tires off of four of my rims yet but the spare rim is tireless. It's marked 16x6-K and S 63 on the inside. The S is slanted like it was hand stamped. The 16 x 6 is the rim size and I assume that K is for Kelsey Hayes (it's also K marked on the outside) and I'm guessing that the 63 is for the year that the wheel was made. But I'm wondering what the S is for? Unless it's for Safety rim but if so why did they mark it on the inside of the wheel where it couldn't be seen? Also if the tire is off so that you can see the S then it's just as obvious to look at the rim and see if it's a Safety rim! So, what is the S for?

PS this is a Safety rim and it does have the small hole in it.

[wesk]

All of your questions have been asked hundreds of times right here and on the G503 but we have no factory data to tell us what that hole is for and the ideas I have heard are often amusing.

The M38 & M38A1 series use the 16x4.5" wheel and the truck/wagons used the 16x5.0" wheel, Willys PN 643665. Now if you have a 16x6 " wheel it is for the Pickup models 475-4WD & 60226-4WD and is Willys PN 922791.

The best written piece on the M38/M38A1 original factory wheels was written by one of the most well known researchers Keith Buckley. Here's a quote of one of his old posts on the topic several years ago:

M38 Wheels Author Keith Buckley

801762 was released for production on 5/5/50 as Rim & Disc Assy (16x4.50 Steel Wheel) for Model MC.

It was later released as 802113 for MC-AF, and 929499 for MD and MDA

The "Contour of Rim & Lock Bead" was changed "to agree with latest vendor dwg" on 6/30/50

Kelsey Hayes was the first vendor of record, with Motor wheel added later (between 7/21/52 and 11/21/52). The Motor Wheel version has the bulge at each lug hole.

BOTH came with EITHER riveted or welded construction.
The rivets themselves carried KH21652 or MW31535.
The rim itself was KH33704 or MW50713
The disc was KH28903 or MW33607

The Rim and Disc ASSEMBLY was KH33702 (DX23051 was the experimental designation) or MW33606.

The rim offset was not Zero, but positive 3/8" which means the disc is towards the outside flange. Since the 4.5 inch width is the bead width. not the overall width, if you lay the wheel on the floor, it will measure 5.54 tall +/- 1/16".

If you lay a straight edge across the back flange, it will be 3.25 +.02/-.04 depending on warpage and runout.

I have seen the single hole repeatedly referenced on the gee, but there is no mention of it on any of the specs I have researched.

The Kelsey Hayes wheels will have 16x4.50 "E" Kelsey-Hayes, Made in U.S.A., and the month day and year Mfd, along with the Tire and Rim Association Mark in a 'convenient' place near the valve hole.

The finish for 801762 was

Primer:
Federal Spec TT-P-636 or optional Federal Spec TTE-485B Double Dip

Enamel:
Military Spec MIL-E-11857, Color Spec TT-E-595, NO.2430 or optional No.2430 applied after final chassis assembly.

finish for 801762 was later changed to "paint per instruction dwg 957085-B" on 9/22/61.

802113 was the same wheel, only painted to TTE-489, STRATA BLUE GLOSS ENAMEL. .75 to 1.25 mils thick.

What was the question again?

Incidentally, Motor Wheel was a wholly owned subsidiary of the Goodyear Tire and Rubber Company until 1987.
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Oldjeeps
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Quote:
Enamel:
Military Spec MIL-E-11857, Color Spec TT-E-595, NO.2430 or optional No.2430 applied after final chassis assembly.

finish for 801762 was later changed to "paint per instruction dwg 957085-B" on 9/22/61.

Paint can tag: Wyandotte Paint Products, Wyandotte MI

Code: 7BLK7710

Name: O.D. Semi Gloss

Color: 2430

Batch 49187

Material: TT-E-529

Date: 8-4-60


I can't speak for the Combat wheels. Every archive I've been to the info was missing. Might have been the old "confidential war item" category. All our tire mold and bulletproof tube dwgs are that way.

I tried to scan the 2430, but it came out black. 2430 is lighter than 24087.

There is no difference between x-24087 and 24087, and there is and was only ONE shade of 24087. I suspect you were comparing the lighter 2430 to the darker 24087.

If the wheels you were looking at were manufactured after 3/1/62, I suspect they were 640800 wheels. They look the same, but have no safety hump and have a 3/4 inch offset instead of 3/8.

So...

Summary -
801762 thru 9/22/61 was 2430, then changed to 24087 MC, 3/8 offset with safeety hump
929499 was 24087 MD, MDA 3/8 offset with safety hump
640800 was civilian colors or 24087 no safety hump

As for the M715,,, the M715 and the XM715 were standard 24087. There was only one.
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Oldjeeps
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