HALF-TRAC DATABASE: DIAMOND T

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HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Thu Jan 21, 2021 2:13 pm

Hi Group,

Here is a G503 database of White, Autocar, and Diamond T halftrack data for all to see and use. I hope by building this database some patterns will show up that can help answer some of the many questions raised by these models of halftracks. Posting photos will help to get the correct details recorded. This will be a group effort so I hope everyone interested in these vehicles can help to fill in the blanks!
Please post ( or email to me ) any numbers/data you have and I will add them to the list as I have time. Due to limited space I will not be able to acknowledge where the data comes from. Last revised 25JUL2023 by Kevin Lockwood.

Height of Frame serial number stampings:

White--------1/2 inch-----------------------------screw slots ( vertical )
Autocar-----9/16 inch-----------------------------screw slots ( any old way )
Diamond T--3/4 inch (Usually hard to read)--screw slots ( vertical sometimes ? )

Model--Ord # range-------------Key #---Manufacturers------Number Ranges-----Purchase Order-----DOD or Notes

M3------1904 to 3903---------------399878-----Diamond T-----401782 to 403781---------T-545--------Serial #s 2000 units
M3------4304 to 4913-----------------------------Diamond T-----4027649 to 4028258------T-1683-------Serial #s built 1941 595 converted to M3A1
M3------5524 to 6159--------------4037169-----Diamond T-----4042693 to 4043328------T-3145-------Serial #s 2288 to 2923 all built during 1942
M3------6472 to 7071--------------4039437-----Diamond T-----4045909 to 4046508------T-3349-------Serial #s 2924 to 3523
M3------7072 to 8071--------------4036257-----Diamond T-----4043329 to 4044328------T-3340-------Serial #s 3524 to 4523 all conv to M3A1 built 1942
M3------8072 to 8309-------------40111266?----Diamond T----40111266 to 40111742?---T-3513-------built 1943 many went to 1AD in Italy
M3------8310 to 9109-----------------------------Diamond T----40102634 to 40103453----T-3513-------built 1942
M3------10275 to 11253--------------------------Diamond T-----4028260 to 4029241------T-3720-------built 1942
M3------22831 to 23830--------------------------Diamond T-----4054460 to 4055459------T-4140-------built 1942 1,000 units
M3&A1-23831 to 26940------------4038261?----Diamond T----4062092 to 4065201------T-4659--------all in 1943 3,110 total 2333 Winch 777 Roller 8Spc.
M3------30121 to 30299--------------------------Diamond T----40104254 to 40104432----T-4571--------------1942 179 units
M3A1-----------------------------------------------------------------------------------------------T-4922--------273 total
T19-----1 to 324
T48-----1 to 962------------------4020933-----Diamond T-----4020934 to 4021895-------T-3513


---Started 12/22/2006----Revised 07/25/23
---* behind Registration(Hood)Number or Ordnance Nbr. indicates the number was derived from a key number for a specific Purchase Order. (see chart above)

White---Autocar-----Diamond T---Registration-----Ord.#----Original------Date of----Location------Notes
Serial #---Serial #------Serial #--------Number--------------------Model------Delivery
--------------------------M30234------------------------2137-------M3--------------------------Fl.-------------M3A1 was M3 Ord Dept data plt only.
--------------------------M30771------402552----------2674*-----M3--------11/41----------------------------
--------------------------M30820------402601----------------------M3--------11/41-------Germany----------Reblt into M16A1 (Grafenwohr)
--------------------------M30967-------------------------967-------M3-------------------------Wi.------Roller--No idler springs.
--------------------------M31445------403226---------3348-------M3---------03/42-------------------Roller--Reblt into M16A1-Restored as M3
--------------------------M31689------------------------------------M3---------------------------Ia.-----
--------------------------M32705------4043110--------5941-------M3---------08/42-------------------Roller--
--------------------------M32746------4043151*-------5982-------M3---------------------------Me.----Roller--160AX14268
--------------------------M32921------------------------------------M3---------------------------Mo.----Roller--
--------------------------M32971------4045956--------6519------M3---------------------------NM-----Winch-Reblt into M3A1 by EW Wylie hood number stmpd.
--------------------------M32976------4045961*-------6524*-----M3----------------------------NY--------------
--------------------------M33137------4046122*-------------------M3-----------------------------------------------------------Veteran's Mem. Mus. Alabama boneyard
--------------------------M33194------4046179--------------------M3------------------------------------Roller-Reblt into M16A1--fndr hdlps
--------------------------M33244-------4046229*------6792-------M3-------------------------------------------Reblt into M3A1
--------------------------M33294-------4046279*-------------------M3------------------------------------Roller
--------------------------M33471-------4046456*------7019*------M3---------09/42----------Ca.------Roller-Reblt into M3A1
--------------------------M33531-------4043336*------7079*------M3--------------------------Ca.------Roller-
--------------------------M33563-------------------------------------M3--------------------------Fl.------
--------------------------M33913-------4043718--------------------M3--------------------------Ut.------
--------------------------M34019------------------------7567-------M3-------------------------------------------Reblt into M16A1 by B&M 5/52 #1561 data plt only
--------------------------M34285W-----4044090-------------------M3----------------------Netherlds--Winch--Reblt into M3A1 Hood#stpd in bumper
--------------------------M34478-------4044283*------8026*------M3-------------------------Mn.------Roller--Pedestal lights---Was in Or.
--------------------------M34547*------4028283S------10298-----M3-------------------------U.K.-----Roller--Ped Lts.-Ord# and Hood# stamped in vehicle.
--------------------------M34549W-------------------------------------------------------------France----Winch
--------------------------M34668-------4028404-------10419------M3---------12/42-------------------Roller-Reblt into M16A1 by B&M
--------------------------M34720-------4028456-------10471------M3-------------------------Wa------Roller---------------------------for sale on ebay 08/14
--------------------------M34983*------4028719-------10734*-----M3------------------------Mi.-------Roller-Reblt into M16A1
--------------------------M35095-------4028831*------10846*----M3--------------------------------------------
--------------------------M35185W---------------------10936------M3-------------------------Ut.-------------- Reblt into M3A1
--------------------------M35244W----------------------10995-----M3-----------------------------------Winch-from craigslist for sale.
--------------------------M35381W-----4029117*------11132*----M3-------------------------Pa.----------------Reblt into M3A1
--------------------------M35496-------4029232-------11247------M3---------02/43----------------------------Fender lights.
--------------------------M35745W----40102843-------8281-------M3-------------------------In.------Winch?
--------------------------M35823W----40102921-------8359-------M3-------------------------Wi------Winch--Reblt as M16A1 1953w/White M16 data plt.
--------------------------M35824W-----------------------------------M3-------------------------Ok.-----Winch--No data plt.
--------------------------M35839W----40102937-------8375-------M3-------------------------Ut.------Winch?----has AberdeenPG #696 T29
--------------------------M36371W----------------------8907-------M3--------------------------------------------Reblt into M16A1 3/52 data plate only
--------------------------M36374W----40103472-------8910-------M3---------05/43---------Pa.-----Winch--Pedestal lights--160AX32678
--------------------------M36727------------------------22984------M3-------------------------------------------Reblt into M16A1 by B&M
--------------------------M36795W---------------------23052------M3--------------------------Tn.-----Winch--Reblt into M3A1
--------------------------M36992W----------------------------------M3-----------------------Holland----Winch--Reblt into M16A1
--------------------------M37107W----------------------------------M3------------------------------------
--------------------------M37144-------4055030-------23401------M3---------07/43----------Mt.-----Roller
--------------------------M37328W-----4055214-------23585------M3----------------------------------Winch
--------------------------M37470W-----4055356*-----23727*-----M3-----------------------------------Winch
--------------------------M37549W*----4055435------23806*-----M3-----------------------------------Winch-Reblt into M16A1 hood # stpd into bumper
--------------------------M37653W----4062171-------23910-------M3--------------------------Md.----Winch-Reblt into M16A1
--------------------------M38027W----4062545-------24284-------M3-------------------------------------------Reblt into M16A1 by B&M
--------------------------M38170W----------------------------------------------------------------In.------Winch-Gun Track-Israeli.
--------------------------M38229-----------------------24486-------M3--------------------------Ky.--------------Reblt into M3A1.
--------------------------M38505-------------------------------------M3-----------------------------------Coverted to M16A1- Restored as M3 w/ winch
-------------------------M3A10067W-------------------24897-----M3A1---------------------------------
-------------------------M3A10107----4063198-------24937*----M3A1--------------------Holland ---Roller-hood # stamped in bumper
-------------------------M3A10603W--4063694-------------------M3A1------------------------U.K.----Winch-French rebuild Hood number stpd in frt bumper
-------------------------M3A10693W--4063784-------25523-----M3A1-------11/43-----------Ca.----
-------------------------M3A10696W--4063787-------25526-----M3A1-------11/43-----------Ks.-----Winch
-----------------------------------------4063830-------------------M3A1----------------------France----Winch--Normandy beach hood #stmpd in bumper
-------------------------M3A10871W-------------------25701-----M3A1-------------------------Fl.-----Winch
-------------------------M3A10905W-------------------25735-----M3A1---------------------------------Winch
-------------------------M3A11103W-------------------25933-----M3A1-------------------------Ms.----Winch
-------------------------M3A11128----4064219*------25958-----M3A1----------------------------------
-------------------------M3A11303W--4064394-------26133-----M3A1-------------------------In.------Winch
-------------------------M3A11345W--4064436?------26175?----M3A1-------12/43-----------UK------Winch-Now is a M3
-------------------------M3A12125W--4064732-------29339-----M3A1-------01/44---------Poland------------Reblt to M16A1 now M3A1
-------------------------M3A12128W-------------------------------M3A1----------------------Netherlds-Winch-Restored as M3
-------------------------M3A12417W-------------------29631-----M3A1-------02/44-----------Ms. Winch
-------------------------M3A110067W-----------------24897-----M3A1-------------------------TX.------Winch-Vertical screws.
------------------------------------------4064505------------------M3A1?------------------------Wi.-----Winch
--------------------------T190136----------------------------------T19---------------------------Az.----
--------------------------T190187----------------------------------T19--------------------------N.M.----Roller--converted to a crane. halftrackinfo.com
--------------------------T190230----------------------------------T19------------------------Belgium---Roller-Restored as M3A1
--------------------------T190252----------------------------------T19----------04/42-----------
--------------------------T190256----------------------------------T19---------------------------UK----
--------------------------T190260------------------------260------T19---------------------------S.D.------------
--------------------------T190264------------------------264------T19---------------------------Tx.------Roller
--------------------------T190324-----409481----------324------T19---------------------------Tx.------Roller-last T19 unit. Hood # found on vehicle.
--------------------------T480126-----------------------40280----T48---------------------------Ne.-----Winch-Reblt into ?
--------------------------T480439-----4021372----------439*----T48---------02/43-----------UK--------------Reblt into M3A1
--------------------------T480457-----4021390*---------457*----T48----------------------------?---------------Seen on eBay


LAST UPDATE 25JUL2023
by Kevin Lockwood
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked


In THE mood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by In THE mood » Wed Feb 10, 2021 12:15 pm

Hello

M38505 complete original armor converted to m16a1 back as M3 winch model
White M3 Halftrack'
Dodge WC57
Dodge WC52
GMC 353 Tipper
Willys Jeep

Kevin Lockwood
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Posts: 1695
Joined: Wed Mar 16, 2005 4:13 am
Location: Kansas

Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Thu Feb 11, 2021 11:11 am

In THE mood: Thanks, I added M38505. Could this have a W at the end? Most Diamond T serial had a W to designate a winch model. Perhaps as a M3 it was a roller?
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

In THE mood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by In THE mood » Thu Feb 11, 2021 1:24 pm

No sign of W number is very hard to read as typical Diamond T winch looks very original attached
White M3 Halftrack'
Dodge WC57
Dodge WC52
GMC 353 Tipper
Willys Jeep

Kevin Lockwood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Fri Feb 12, 2021 7:14 am

Ok! Thanks for the double check. Should be a W there but you are correct Diamond Ts are notorious for FAINT stampings.
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

Kevin Lockwood
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Posts: 1695
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Fri Feb 12, 2021 7:30 am

Added:
Diamond T Ser#M35381W to the list.
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

In THE mood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by In THE mood » Fri Feb 12, 2021 1:06 pm

Hello

M3 4285W stamped in bumper 4044090 winch model restored as M3A1 collection the Netherlands
M3A12128W restored as M3 winch model. The Netherlands
White M3 Halftrack'
Dodge WC57
Dodge WC52
GMC 353 Tipper
Willys Jeep

Kevin Lockwood
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Posts: 1695
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Mon Feb 15, 2021 7:17 am

In THE mood:
Added Diamond T SER# M34285W HOOD# 4044090 Rebuilt into M3A1. Hood# stamped in the bumper.

Added Diamond T SER# M3A12128W Restored as M3
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

In THE mood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by In THE mood » Mon Feb 15, 2021 8:17 am

Hi

Hood number stamped on top right front bumper
White M3 Halftrack'
Dodge WC57
Dodge WC52
GMC 353 Tipper
Willys Jeep

Kevin Lockwood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Thu Feb 18, 2021 12:00 pm

Added:
Diamond T M3 Personnel Carrier, Ser# M34547, Ord# 10298, Hood# 4028283S
Ordnance and Hood numbers were stamped into vehicle. I computed the frame number from other known vehicles.
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

Kevin Lockwood
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Posts: 1695
Joined: Wed Mar 16, 2005 4:13 am
Location: Kansas

Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Fri Feb 19, 2021 7:42 am

Added:
Diamond T Half-Trac M3 Ser# M35095, Ord# 10846, Hood# 4028831 Both the Ord and Hood #s were calculated from other known vehicles.
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

Kevin Lockwood
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Posts: 1695
Joined: Wed Mar 16, 2005 4:13 am
Location: Kansas

Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Thu May 20, 2021 11:30 am

Edited : M3A10107 by computing ord # as 24937 having photo of frame number M3A10107. Hood # was stamped in bumper/frame
Added : Hood # 4055435 Stamped into bumper and computed frame # M37549W and ord # 23806.
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

Kevin Lockwood
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Posts: 1695
Joined: Wed Mar 16, 2005 4:13 am
Location: Kansas

Re: HALF-TRAC DATABASE: DIAMOND T

Post by Kevin Lockwood » Fri May 28, 2021 11:05 am

28MAY2021 Added M3 Half-Trac Diamond T SER# M35244W ORD#10995 info from a craigslist for sale ad showing data plate.
42 Ford GPW
42 Oshkosh AAF Snowblower
41 White M2 halftrack
42 Autocar M2A1 was M2 halftrack
42 Autocar M3-75 halftrack
42 White M4A1 was M4 halftrack
43 Diamond T M3A1 halftrack
43 White M16 was M13 halftrack
44 LVT-3 Landing Vehicle Tracked

Pigtrician
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by Pigtrician » Sun Oct 24, 2021 3:29 pm

Hello, I’m new to the forum. I have a Diamond T halftrack that I bought several years ago. It’s in rough shape but I think it can be saved. I’m retiring in 2 or 3 years and it’s on my bucket list of projects. MFRS. SERIAL NO. M38329,
ORD SERIAL NO. 24486. FROM THE SERIAL NO. I think it was built in 1943 and maybe was used in Italy. Is that correct. My father was a tank gunner in Italy during WWII. Is there anymore information that can be gotten from these numbers?

In THE mood
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Re: HALF-TRAC DATABASE: DIAMOND T

Post by In THE mood » Thu Oct 28, 2021 4:40 am

New arrival Diamond T frame number M38296
Winch model pedestal headlamps
Rivet footman loops
Almost all screw slots vertical
Any idea on hood number?
White M3 Halftrack'
Dodge WC57
Dodge WC52
GMC 353 Tipper
Willys Jeep


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