Lug Nut Wrench

Manufacturers, configurations, Shovels, Axe, Wrenches, Oiler, F/E etc.
Ben Dover
Gee Addict
Posts: 42260
Joined: Sun Mar 02, 2008 2:37 pm
Location: Proving Ground

Re: Lug Nut Wrench

Post by Ben Dover » Wed May 16, 2018 6:15 am

And the way it is posted in SNL G-658 Ford Master Parts list, it is just a reference to the Willys equivalent. The 41-W-3837-25 and -55 dimensions are different. The Wheel nuts for MB thru M-38A1 are all 3/4". There is no need to lose any sleep over 41W spec, am sure it eill surface some day, GPW-17035's the name of the game, happy hunting.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

Chuck Lutz
Gee Addict
Posts: 24047
Joined: Wed Jun 28, 2006 8:00 am
Location: Novato, CA

Re: Lug Nut Wrench

Post by Chuck Lutz » Wed May 16, 2018 10:59 am

Hi Greg....
I guess we can get some feedback from guys who have the WO-348 LW and the Ford equivalent and compare them to the "25" and the "55". I totally agree with you that some variance in the opening is possible, otherwise paint and nicks to the lug nuts would make it impossible to fit the LW onto them. So, here goes:

WO wrench drawing #1 calls for 49/64" and this is the version with the slightly greater than a 90* bend. That translates to .7656"
WO wrench drawing #2 calls for 25/32" and this is the version with the 90* bend. That translates to .78125"

I do not have the Ford drawing to refer to, but my original Ford LW measures as follows:
First set of flats: .758"
Second set of flats: .760"
Third set of flats: .761"

So, can some kind soul take three measurements of the hex opening in a "25" and a "55" to see what they are?
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
GPW 108552 4/17/43 Louisville, KY. USA 20371278 (DOD est./Tom W.)
Bantam T3 4582 10/29/42 USA 0173499 (est.)

Ben Dover
Gee Addict
Posts: 42260
Joined: Sun Mar 02, 2008 2:37 pm
Location: Proving Ground

Re: Lug Nut Wrench

Post by Ben Dover » Wed May 16, 2018 1:19 pm

Here are Hex size for 41-W-3837-25 from three different manuals for MB, M-38, and M-38A1.
1. -33/64"
2.-3/4"
3.-3/4"
They re all greater than the 3/4" Hex on the A-475/A-476 Wheel Nuts. The 41-W-3837 Wrench is a looser fit than the -25.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO

Chuck Lutz
Gee Addict
Posts: 24047
Joined: Wed Jun 28, 2006 8:00 am
Location: Novato, CA

Re: Lug Nut Wrench

Post by Chuck Lutz » Wed May 16, 2018 3:08 pm

It might be a tad difficult to fit a 33/64" LW on a 3/4" lug nut.....being as how 33/64" is just ONE SIXTY-FOURTH larger than 1/2" don't you think?

However, I am not really interested just YET in what the manuals say, I'm interested in three measurements for the three sets of flats the hex opening on a "25" and a "55" have.
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
GPW 108552 4/17/43 Louisville, KY. USA 20371278 (DOD est./Tom W.)
Bantam T3 4582 10/29/42 USA 0173499 (est.)

Ben Dover
Gee Addict
Posts: 42260
Joined: Sun Mar 02, 2008 2:37 pm
Location: Proving Ground

Re: Lug Nut Wrench

Post by Ben Dover » Wed May 16, 2018 3:24 pm

Obviously a typo, stay tuned.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
LIFE MEMBER AM LEGION-40/8-DAV
7 MIL SPEC MAINTAINED MV'S
COL. BRUNO BROOKS (ARMY MOTORS) IS MY HERO


User avatar
Wingnutt
G-Lieutenant General
G-Lieutenant General
Posts: 4041
Joined: Mon Oct 24, 2011 2:17 pm

Re: Lug Nut Wrench

Post by Wingnutt » Thu May 17, 2018 6:41 am

Ben Dover wrote:
Wed May 16, 2018 6:15 am
The 41-W-3837-25 and -55 dimensions are different.
As I said upthread, I would expect so, otherwise the technical panels working for the Treasury Dept would not have bothered giving them different stock numbers in the Federal Standard Stock Catalog. If you (or anyone else!) have at least one of each, measure the I.D. of the hex and report the measurements. If you have more than one of each, which would be ideal, measure all of them and report all the diameters.
Chuck Lutz wrote:
Wed May 16, 2018 10:59 am
I guess we can get some feedback from guys who have the WO-348 LW and the Ford equivalent and compare them to the "25" and the "55".
Exactly. I don't have any originals or replacements to contribute measurements. But I'll be eager to see the results of a good sample size.
TEMPORARY DUTY

User avatar
pjones
G-Brigadier General
G-Brigadier General
Posts: 2263
Joined: Wed Jan 05, 2011 3:26 pm

Re: Lug Nut Wrench

Post by pjones » Thu May 17, 2018 4:33 pm

Here are measurements from a couple of -55 wrenches I have and my Ford wrench.

-55--- .79, .79, .80
-55--- .78, .79, .79

Ford -- .79, .80, .80

phil
pjones
'42 Ford GPW 7127
Need a MVMTS/GMTK?
Need a jeep toolkit?

Chuck Lutz
Gee Addict
Posts: 24047
Joined: Wed Jun 28, 2006 8:00 am
Location: Novato, CA

Re: Lug Nut Wrench

Post by Chuck Lutz » Fri May 18, 2018 12:31 pm

Phil....is your Ford wrench the kind with the 90* angle on it or the other, maybe 115* or so angle?
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
GPW 108552 4/17/43 Louisville, KY. USA 20371278 (DOD est./Tom W.)
Bantam T3 4582 10/29/42 USA 0173499 (est.)

User avatar
pjones
G-Brigadier General
G-Brigadier General
Posts: 2263
Joined: Wed Jan 05, 2011 3:26 pm

Re: Lug Nut Wrench

Post by pjones » Sat May 19, 2018 10:26 am

Chuck, Here is a photo of the wenches I measured. Ford wrench to the right and the -55 wrenches to the left.

Image

phil
pjones
'42 Ford GPW 7127
Need a MVMTS/GMTK?
Need a jeep toolkit?

Post Reply

Return to “G503 Tools & Equipment ( Vehicle & Pioneer)”

Who is online

Users browsing this forum: No registered users and 2 guests