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Posted: Sun Feb 05, 2017 11:05 pm
by wesk
This is rapidly turning into a "Who's on first, I don't know who's on 2nd" comic strip exercise.

673419 is not listed in the numerical appendix of the ORD 9 SNL G740.

So at this point we have the factory production data giving us the correct Willys Part Numbers for the two parts:

Spare tire bracket vibration damper is PN 673419 (curved spring part)

Rt side bow bracket guard is is really listed at Willys as "Bracket-Vibration Dampener-Spare Wheel" PN 673773 (Channel shaped with two bolt holes)

The ORD 9 SNL G-740 Happens to list 673773 under the spare tire bracket in section 1504 with ORD # 7697437 which Willys shows as the 673419 curved spring damper.

Thank you Keith. Since 673419 is not listed at all in the ORD 9 SNL G-740 it is a good assumption that since it is the welded part of the spare mount bracket it was deemed un-necessary to list it in the ORD 9. The only remaining issue is the Army erred in using the ORD # 7697437 with the wrong part. I can only guess that since all the offered ORD # 7697437 curved spring dampers are aftermarket and were probably assumed by vendors to be the part in question.



Due to the question below from Gary I hope this will clear up and misunderstanding of what I mean by the statement "the Army erred"
I've used the military parts manual for 22 years in the service and 25 since I retired. I felt the Army ORD 9 writers erred by not listing the bracket shown in the illustration Fig 15-3 but instead they listed a bracket not shown in Fig 15-3. The only part in Fig 15-3 that resembles a Vibration Damper is the curved spring bracket.

Posted: Mon Feb 06, 2017 12:09 am
by keats
I am not sure I am following this clearly. How and why is the army wrong? The ORD 9 lists the side vibration dampener using both the correct WO 673773 and ORD 7697437 numbers for the part. What else could it be? Why does the ORD 9 listing have to be addressing the spring shaped "shim"? In some cases the spare tire was moved to the side on the M38 so wouldn't the side bracket be in the right section (1504)? Why does ORD # 7697437 have to be the "rear spare tire shim' ,and not the "side vibration dampener"?

Posted: Mon Feb 06, 2017 12:54 am
by wesk
Gary,

I've used the military parts manual for 22 years in the service and 25 since I retired. I felt the Army ORD 9 writers erred by not listing the bracket shown in the illustration Fig 15-3 but instead they listed a bracket not shown in Fig 15-3. The only part in Fig 15-3 that resembles a Vibration Damper is the curved spring bracket. I'll go back and re-word my last post to make the actual disagreement I have with the manual writers clearer.

Until Keith's post none of us knew the curved spring type bracket in Fig 15-3 was a shim and not a vibration damper. It certainly looks more like a vibration damper then the bow socket guard does.

Posted: Mon Feb 06, 2017 1:18 am
by keats
Member BCA always seems to come up with some misunderstood, obscure, or previously unclearly documented part that peaks my interest immediately. It starts the thrill of the chase reflex I guess.

I am not out to prove anyone wrong or misleading the m38 story. I have been proven wrong in the past, but that is part of the hunt for the correct history and I am always just grateful that a satisfactory answer based on factual and written proof is found. That benefits us all. It increases our data base of knowledge and makes our vehicles more correct. I really enjoy trying to get to the bottom of these topics and look forward to more.

Its great that WillysMotors has this rare information and that he is willing to share it with all of us. Every time this website offers us the opportunity to discuss topics such as this one and similar ones, and allows a dialogue of ideas and research to clear them up and find an answer is a true treasure. Thanks Wes, and all who contribute to this site.

Posted: Mon Feb 06, 2017 1:25 am
by wesk
Exactly Gary. That's what Ryan and I started this site for.

One of these days I am going to get my hands on copies of the two CDN parts manuals so I can make a much better full research library available.

Keith has been a tremendous resource for this web site for many years.

Posted: Mon Feb 06, 2017 3:36 am
by WillysMotors
I should clarify that I did not see anywhere that willys referenced 7697437 in relation to either of these parts. I was merely referencing the pictures that appeared in this thread. I can't comment on the ORD 9 due to lack of knowledge.

I stumbled upon the Willys numbers by starting with the spare tire bracket assembly and went up from there until I found a diagram.

Posted: Mon Feb 06, 2017 7:05 am
by 4x4M38
Yes, your listing of the correct Willys number has provided much clarity. Thanks!

It is referenced as 7697437 and WO-673773 on page 277 of the Ord 9
G740.

Wes to your note that it's listed with parts for the spare tire carrier note also
directly above it is the rear support bracket 7697436, and above it is
Bracket, spare wheel carrier, w/FILLER, assy (welds to right side of body panel).

I think the Army considered all of these pieces parts of the 1504-Spare Wheel Carrier and listed them all together, regardless of their location on the vehicle.

I too appreciate the discussion and value everyone's expertise and information.

Posted: Mon Feb 06, 2017 11:42 am
by wesk
My point was more simply put the Army failed to include the side mount bow socket guard in the the drawing (Fig 15-3). I know they considered it part of the spare mounting system. I am questioning why it wasn't included in that fig. Had it been included in that figure this topic would have never been discussed.

This is how I would have presented fig 15-3 to properly represent the section 1504.

Image

Agreed!

Posted: Mon Feb 06, 2017 6:48 pm
by BCA
I agree with Wes's most recent addition to how an ideal entry in the ORD 9 would be presented.. Everything seems clearer now but wasn't so obvious at the beginning. ..... Brian

Posted: Mon Feb 06, 2017 9:53 pm
by 4x4M38
It was a long way around the mountain!

Now to get the vendors lined out....

😂