Cadillac
Motor Car Division of General Motors in World War Two
Detroit, MI
1902-Current
This page updated on
1-20-2022.
The Cadillac Motor Car Company originally
began as Henry Ford's second attempt to start a car company.
However, when investors hired Henry Leland to come in as a consultant,
Ford left the company. Under Leland's leadership, it became Cadillac.
This 1903 Cadillac is on display at the Gilmore Car Museum.
Author's Photo.
Cadillac Motor Car in World War One: Cadillac built 2,500
Model 57s for the U.S. Army during World War One. Of the
2,500, 2,100 were sent to Europe for use by officers. The one
shown below was giving to the Louisiana National Guard after the war and
was used until the early 1930s. It is now on display at the
Jackson Barracks Museum in New Orleans, LA.
Author's photo added 12-26-2021.
Author's photo added 12-26-2021.
Author's photo added 12-26-2021.
Cadillac Motor Car Division
World War Two Production Statistics: (1,470) M5 Stuart tanks, (3,530) M5A1 Stuart
tanks, (1,778) M8 75mm howitzer motor carriages, (3,592) M24 Chaffee
tanks, (300) M19 Twin 40mm anti-aircraft carriages, (175) different parts for the Allison V-1710 aircraft engine
including crankshafts, camshafts, connecting rods and piston pins,
supercharger rotator vanes and gear reduction assemblies, at least
(12,880) V-8 engines to other manufacturers of armored vehicles.
Author's Note: Some sources
credit the M5 and M5A1 Stuart tanks built by the Southern California
Division of General Motors at South Gate, CA to the Cadillac Division of
GM. The Southern California Division of GM
was its own entity within the GM corporate family. For more
information see my Southern California's War Division webpage. The
Southern California Division built 354 M5 and 1,196 M5A1 light Stuart
tanks. These have Cadillac data plates on them as Army Ordnance
considered Cadillac as the prime contractor. Combined the two GM
divisions built (1,824) M5s and 4,726 M5A1 Stuart tanks.
There were another 2,074 M5A1 Stuart tanks
built by Massey-Harris and American Car and Foundry. Cadillac
supplied the 4,148 V-8 engines for these. Cadillac also supplied
500 engines for the 250 Massey-Harris built M5s. It also furnished
2,278 V-8 engines to Massey-Harris for the 1,139 M24 Chaffees it built. For the
Borg-Warner and Gramm-Paige-built LVT(3), it supplied 5,924 V-8 engines. It also
supplied 60 engines to GMC for its construction of the T18E2 Boarhound
Armored Car.
Cadillac was located at an original 47 acres
complex at Clark and Scotten Streets in Detroit and was known as the
Clark Street Plant. Construction began in 1919 on the four story 2.7
million square foot assembly and administration buildings.
Construction at the complex was completed in 1927 with a foundry added
in 1923. When complete, it was considered to be the world's most
modern car plant. Bodies were supplied by the Fleetwood Plant of
Fisher Body, which was three miles away. The complex was closed in
March of 1994. Today all of the buildings are gone.
Cadillac won the Army-Navy "E" award on
January 13, 1943. It later added three stars for a total of four
awards.
This 1938 Series 75 Cadillac Limousine has the distinction of being
the car that General George S. Patton was in when he had his fatal
accident. Built in Detroit and then sent to France before the
start of hostilities, it was used by the Gestapo during the occupation
of France. Liberated in 1945 by American troops of the 5th Army ,
it was presented to General Patton to use as his staff car. Today
it can be seen at the Patton Museum at Fort Knox, KY. Author's
photo.
After the accident, the vehicle was rebuilt using a Cadillac V-8
engine from a M24 tank to replace the original damaged power plant.
After continued use as a staff car in Europe, it came to the Patton
Museum in 1951. Author's photo.
This 1930 Cadillac V-16 engine was a
predecessor to the V-8 engine that would power the M5 Stuart Series and
M26 Chaffee tanks in World War Two. It displaced 452 cubic inches and
produced 165 hp. Author's photo from the Gilmore Car Museum.
Cadillac
Detroit MI Plant Armored Vehicles
Accepted by Detroit Ordnance, US Army
The information below comes from "Summary Report of
Acceptances, Tank-Automotive Material, 1940-1945."
Published by Army Services Forces, Office, Chief of
Ordnance-Detroit, Production Division, Requirements and
Progress Branch
January 21, 1946. |
Type |
1940 |
1941 |
1942 |
1943 |
1944 |
1945 |
Total |
Tank, Light, M5 |
|
|
1,470 |
|
|
|
1,470 |
Tank, Light, M5A1 |
|
|
704 |
1,772 |
1,054 |
|
3,530 |
Tank, Light, M24 |
|
|
|
|
1,740 |
1,852 |
3,592 |
Carriage, Motor,
75mm Howitzer, M8 |
|
|
373 |
1,330 |
75 |
|
1,778 |
Carriage, Motor,
Twin 40mm Gun, M19 |
|
|
|
|
|
300 |
300 |
Total Armored
Vehicles |
|
|
2,547 |
3,102 |
2,869 |
2,152 |
10,670 |
M5 Serial Number 378 was built by Cadillac in August 1942. It is
seen here on outside display at the 2018 MVPA Convention in Louisville,
KY. Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
This M5 was built by Cadillac in Detroit, MI in September 1942. It
was one of 382 M5s Cadillac built that month and is serial number 671.
The first 800 M5 Stuart tanks built by Cadillac did not have an escape
hatch in the floor. Today it is on display at the Gas City, IN city
hall. Author's photo added 11-15-2017.
Author's photo added 11-15-2017.
This is Cadillac built M5
Serial Number 755 with Registration number 305138. It was also
built in September 1944. Author's photo from the AAF Tank Museum in
Danville, VA added 11-15-2017.
This M5 Stuart tank was built by Cadillac in
October 1942. Serial Number 961 is on display at the Sam Werner
Military Museum in Monteagle, TN. Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
M5 Serial Number 1243 is owned and operated by Roberts Armory in
Rochelle, IL. It was built by Cadillac in November 1942.
Author's photo added 10-17-2019.
This Cadillac built M5A1 is serial number 2121 and was came off the
assembly line in December 1942. Author's photo added 11-15-2017.
Today it can be seen on display at Camp Perry at Port Clinton, OH.
Author's photo added 11-15-2017.
The M5A1 was powered by two Cadillac V-8 engines of
110 hp each and two GM Hydra-Matic Transmissions. Author's photo
added 11-15-2017.
M5A1 Serial Number 3858 was built by Cadillac in January 1943. It
is seen here on outside display at the 2018 MVPA Convention in
Louisville, KY. Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
M5A1 Serial Number 4213 was built by Cadillac in March 1943. It is
seen here on outside display at the 2018 MVPA Convention in Louisville,
KY. Author's photo added 10-17-2019.
M5A1 Serial Number 5085 was built by Cadillac in October 1943 and can be viewed at the American Heritage Museum in Hudson, MA.
Author's photo added 10-17-2019.
M5A1 Serial Number 5242 was built by Cadillac in November
1943. It is seen here on outside display at the 2018 MVPA
Convention in Louisville, KY. Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
M5A1 Serial Number 6297 was built by Cadillac in April 1944. It is seen
here on outside display at the 2018 MVPA Convention in Louisville, KY.
Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
The table below provides Cadillac
Division of General Motors production
information on the M5/M5A1 series tanks produced during WWII. This information has been
painstakingly researched and gathered by Joe DeMarco. We thank Joe for
allowing this website to use this information.
The M5 and M5A1 Stuart tank information provided by Joe includes monthly
production figures, serial and registration numbers, and the purchase
order numbers. This information is almost non-existent in the
literature or on websites
The Cadillac Division of General Motors M5/M5A1 Production Information
Courtesy of
Joe DeMarco
This section added 11-15-2017. |
Model |
Date
|
Monthly Production |
Serial numbers |
USA Registration Numbers |
Purchase Order |
M5 |
12-42 |
1 |
1 |
3046702 |
T-3013 |
|
|
|
|
|
|
M5 |
4-1942 |
3 |
2 - 4 |
3043436 - 3043438 |
T-3159-1 |
|
5-1942 |
16 |
5 - 20 |
3043439 - 3043454 |
|
|
6-1942 |
60 |
21 - 80 |
3043555 - 3043514 |
|
|
7-1942 |
123 |
81 - 203 |
3043515 - 3043637 |
|
|
8-1942 |
240 |
204 - 443 |
3043638 - 3043877 |
|
|
9-1942 |
382 |
444 - 825 |
3043878 - 3044259 |
|
|
10-1942 |
465 |
826 - 1290 |
3044260 - 3044724 |
|
|
11-1942 |
180 |
1291 - 1470 |
3044725 - 3044904 |
|
Total M5 |
|
1,470 |
|
|
|
|
|
|
|
|
|
M5A1 |
11-1942 |
236 |
1471 - 1706 |
3044905 - 3045140 |
T-3159-1 |
|
12-1942 |
294 |
1707 - 2000 |
3045141 - 3045434 |
|
|
2-1943 |
1 |
2001 |
3045435 |
|
|
|
|
|
|
|
|
12-1942 |
174 |
2002 - 2175 |
3045436 - 3045609 |
T-3110 |
|
1-1943 |
92 |
2176 - 2267 |
3045610 - 3045701 |
|
|
1-1943 |
123 |
3768 - 3890 |
3046880 - 3047002 |
T-3578 |
|
2-1943 |
189 |
3891 - 4079 |
3047003 - 3047191 |
|
|
3-1943 |
190 |
4080 - 4269 |
3047192 - 3047381 |
|
|
4-1943 |
110 |
4270 - 4379 |
3047382 - 3047491 |
|
|
5-1943 |
100 |
4380 - 4479 |
3047492 - 3047591 |
|
|
6-1943 |
100 |
4480 - 4579 |
3047592 - 3047691 |
|
|
7-1943 |
106 |
4580 - 4685 |
3047692 - 3047797 |
|
|
8-1943 |
146 |
4686 - 4831 |
3047798 - 3047943 |
|
|
9-1943 |
138 |
4832 - 4969 |
3047944 - 3048081 |
|
|
10-1943 |
146 |
4970 - 5115 |
3048082 - 3048227 |
|
|
11-1943 |
138 |
5116 - 5253 |
3048228 - 3048365 |
|
|
12-1943 |
193 |
5254 - 5446 |
3048366 - 3048558 |
|
|
1-1944 |
230 |
5447 - 5676 |
3048559 - 3048788 |
|
|
2-1944 |
230 |
5677 - 5906 |
3048789 - 3049018 |
|
|
3-1944 |
270 |
5907 - 6176 |
3049019 - 3049288 |
|
|
4-1944 |
250 |
6177 - 6426 |
3049289 -
3049538 |
T-7067
starts with SN 6324 |
|
5-1944 |
74 |
6427 - 6500 |
3049539 - 3049612 |
|
Total M5A1 |
|
3,530 |
|
|
|
The Cadillac World War Two body shop as an
M5 hull is welded together.
Here one of the Cadillac V-8s is installed
in an M5. Note that the transmission faced forward as the tank
treads are powered from the front axle.
This looks to be towards the end of the
assembly line, as the M5s look complete.
This Cadillac-built M8 75mm Howitzer Gun
Carriage is on display at the American Heritage Museum in Hudson, MA.
There are only five left in the United States, of which only three are at
museums where they can be viewed. Author's photo added 10-17-2019.
Serial Number 1270 was built by Cadillac in June 1943. Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
Author's photo added 10-17-2019.
Cadillac also built the M7 mounts for the
howitzer. It is Serial Number 1008 dated 1943. Author's
photo added 10-17-2019.
Cadillac
Division of General Motors M8 75mm Motor Carriage Production Information
This section added 10-17-2019. |
Date
|
Monthly Production |
Serial numbers |
USA Registration Numbers |
9-1942 |
1 |
1 |
4051234 |
10-1942 |
24 |
2-25 |
4051235-4051258
|
11-1942 |
101 |
26-126 |
4051259-4051359 |
12-1942 |
247 |
127-373 |
4051360-4051606 |
1-1943 |
160 |
374-533 |
4051607-4051766 |
2-1943 |
160 |
534-693 |
4051767-4051927 |
3-1943 |
160 |
694-853 |
4051928-4052086 |
4-1943 |
160 |
854-1013 |
4052087-4052246 |
5-1943 |
160 |
1014-1173 |
4052247-4052406 |
6-1943 |
160 |
1174-1333 |
4052407-4052566 |
7-1943 |
62 |
1334-1395 |
4052567-4052628 |
8-1943 |
62 |
1396-1457 |
4052629-4052690 |
9-1943 |
62 |
1458-1519 |
4052691-4052752 |
10-1943 |
62 |
1520-1581 |
4052753-4052814 |
11-1943 |
62 |
1582-1643 |
4052815-4052876 |
12-1943 |
60 |
1644-1703 |
4052877-4052938 |
1-1944 |
75 |
1704-1778 |
4052939-4053011 |
Total |
1,778 |
|
|
Three Cadillac built M8s prepare to fire an
artillery barrage from their 75mm howitzers.
This M24 Chaffee was built by Cadillac in
March 1945 and is serial number 2812. Author's photo from the
First Division Museum in Wheaton, IL added 11-15-2017.
The M24 was also powered by twin Cadillac V-8 engines and Detroit
Transmission Division Hydra-Matic
transmissions. Author's photo added 11-15-2017.
M24 serial number 965 came off the Cadillac
assembly line in November 1944. Today it is owned by the Virginia
Museum of Military Vehicles. Author's photo added 11-15-2017.
Author's photo added 11-15-2017.
Author's photo added 11-15-2017.
The table below provides Cadillac
Division of General Motors production
information on the M24 series tanks produced during WWII. This information has been
painstakingly researched and gathered by Joe DeMarco. We thank Joe for
allowing this website to use this information.
The M24 Chaffee tank information provided by Joe includes monthly
production figures, serial and registration numbers, and the purchase
order numbers. This information is almost non-existent in the
literature or on websites.
Cadillac
Division of General Motors M24 Production Information
Courtesy of
Joe DeMarco
This section added 11-25-2017. |
Model |
Date
|
Monthly Production |
Serial numbers |
USA Registration Numbers |
Purchase Order |
M24 |
4-44 |
1 |
1 |
30112594 |
T-11120 |
|
5-44 |
24 |
2 - 25 |
30112595 -
30112618 |
|
|
6-44 |
50 |
26 - 75 |
30112619 –
30112668 |
|
|
7-44 |
100 |
76 - 17 |
30112669 –
30112768 |
|
|
8-44 |
200 |
176 - 375 |
30112769 –
30112968 |
|
|
9-44 |
212 |
376 – 587 |
30112969 –
30113180 |
|
|
10-44 |
277 |
588 – 864 |
30113181 –
30113457 |
|
|
11-44 |
136 |
865 – 1000 |
30113458 –
30113593 |
|
|
11-44 |
241 |
1251 – 1491 |
30119270 –
30119510 |
T-12368 |
|
12-44 |
309 |
1492 – 1800 |
30119511 –
30119819 |
|
|
12-44 |
190 |
1801 – 1990 |
30120329 –
30120518 |
T-13780-1 |
|
1-45 |
200 |
1991 – 2190 |
30120519 –
30120718 |
|
|
2-45 |
300 |
2191 – 2490 |
30120719 –
30121018 |
|
|
3-45 |
350 |
2491 – 2840 |
30121019 –
30121368 |
|
|
4-45 |
205 |
2841 – 3045 |
30121369 –
30121573 |
|
|
5-45 |
303 |
3046 – 3348 |
30121574 –
30121876 |
|
|
5-45 |
47 |
3709 – 3755 |
30137268 –
30137314 |
T-13780-2 |
|
6-45 |
280 |
3756 – 4035 |
30137315 –
30137594 |
|
|
7-45 |
86 |
4036 – 4121 |
30137595 –
30137680 |
|
|
8-45 |
81 |
4122 – 4202 |
30137681 –
30137761 |
|
Total Cadillac M24s |
3,592 |
|
|
|
At the end of World War Two Cadillac produced 300 M19 twin 40mm
anti-aircraft gun carriages which were built on theM24 Chaffee chassis. While
these were too late to see combat in World War Two, they did serve with
distinction in the Korean Conflict. Of the 300 built, there are
thirteen still in existence on display or in operating condition by
private owners. This M19 is part of the collection of the Virginia
Museum of Military Vehilces in Nokesville, VA. Author's photo
added 11-30-2016.
This M19 is on display at the Mississippi
Armed Forces Museum at Camp Shelby, MS. Author's photo added
8-3-2020.
Author's photo added 8-3-2020.
Author's photo added 8-3-2020.
This M19 is on display at Louisiana
Maneuvers and Military Museum at Camp Beauregard, LA. Author's
photo added 8-3-2020.
Author's photo added 8-3-2020.
This M19 is on display at Jackson Barracks
in New Orleans, LA. It is serial number 218. Author's photo
added 8-3-2020.
Author's photo added 8-3-2020.
Author's photo added 8-3-2020.
This M19 is part of a military vehicle
display at Fort Wayne in Detroit, MI. It is three miles from where
it was built at the former Cadillac Clark Street Assembly plant.
Author's photo added 8-3-2020.
Cadillac-built M19 Twin 40mm Gun
Motor Carriage Serial and USA Registration Numbers |
Serial Numbers |
Registration Numbers |
3 - 261 |
40190124 - 40190382 |
262 - 302 |
40190642 - 40190682 |
Here is a Series 42 Cadillac V-8 346 cubic inch tank engine. At
4,000 rpm it could produce 110 hp and at 1,200 rpm could produce 244
ft-lbs. of torque. Two each were used in the M5 and M26 Series
tanks. Author's photo at the Ropkey Armor Museum in Crawfordsville, IN.
Author's photo.
This LVT(3) (Landing Vehicle, Tracked) was one of 2,962 built during the
Second World War for the US Marine Corps. Each of the series was
powered by two Cadillac V-8 engines. Author's photo at the
National Military Historical Center, Auburn, IN.
Author's note: This is no longer at the National Military
Historical Center, which as of June 2020, is now completely closed. DDJ
4-3-2020.
One can see the panels are off on the right side where one of the Cadillac
engines is located. Author's photo.
Author's photo of the right side Cadillac engine in the LVT(3).
The total 220 hp provided by the twin V-8s gave the LVT(3) a top speed
of 5.2 knots on the water and 25 mph on land. The LVT(3) first saw
combat at Okinawa. Author's photo.
Author's photo of the left side Cadillac V-8 engine.
One can see the Cadillac name on the engine head. Author's photo.
Cadillac V-8 Engines coming down the
assembly line during the Second World War.
In this
photo M24 Chaffee light tanks are coming down the Cadillac assembly
line.
Here is a General Motors Allison V-1710 V-12
Aircraft engine that contained up to 175 parts manufactured by Cadillac
in Detroit. Cadillac began supplying parts for the Allison engine
in 1939. Author's photo at the Museum of the United States Air
Force.
This T18E2 GMC built Boarhound was powered
by two Cadillac V-8 engines and was photographed at the GM Proving
Grounds on January 19, 1943.
Chevrolet began development on the M38
armored car in 1944 as a replacement for the M8 Greyhound.
Production did not get started until March 1945 on the new armored car,
and only five pilot models were built due to the end of the war in
Europe. The M38 was powered by a Cadillac V-8 engine mated to a
Detroit Transmission Hydra-Matic transmission. Photo added
1-8-2020.
This photo at the Museum of the United
States Air Force has an Allison engine in front of a Lockheed P-38.
Author's photo.
This shows the entire P-39 drive train with
General Motors Divisions' components. On the left is the Allison
V-1710 engine, then the Oldsmobile built 37mm cannon, the Cadillac gear
reduction unit, and then the Aeroproducts propeller. The engine
was behind the pilot and the driveshaft went between the pilot's legs, allowing the cannon to fire
out center hub of the prop.
Author's photo from the National
Museum of the United States Air Force.
This gives a closer look at the cannon,
Cadillac gear reduction unit and prop. Author's Photo.
Note that the cannon fires through the
center hub of the Aeroproducts propeller but does not go through the
center of the gear reduction unit. Also, the brass input propeller
shaft is off centered. Author's Photo.
The Bell P-39. Author's Photo.
Author's Photo.
This drive train unit for a Fisher Body XP-75/P-75 fighter has two
Allison V-1710 married together designated as a V-3420, with two
drive shafts inputting into a Cadillac rear reduction unit. Author's
Photo.
Author's Photo.
The Fisher Body Division of GM's XP-75.
Author's Photo.
This 1941 Sanborn map shows the Cadillac
Clark Street complex. Image added 1-19-2022.
Image added 1-19-2022.
Image added 1-19-2022.
Image added 1-19-2022.
On the left hand side of the ad is an
M5/M5A1 tank. On the right side is an M8 3-inch howitzer motor
carriage.
This ad implies that Cadillac built its own
Hydra-Matic transmissions, which is incorrect. They were built by the
Detroit Transmission Division. See my Detroit Transmission page
for more information.
This very colorful World War Two ad shows a
GM Allison powered Lockheed P-38 wreaking havoc on Japan. Cadillac
made 175 different parts for the Allison aircraft engine.
Cadillac... From Peace to War
1944
Cadillac Military Products after World War
Two
The following items were produced at the
former Fisher Body Aircraft plant #2 at the Cleveland, OH airport.
This was a US government built and owned building and returned to the
control of the government after World War Two. When the Korean War broke
out, the plant was opened back up and became the Cleveland Tank Arsenal
under Cadillac management. Cadillac was back in the business of
making light tanks!
All of the following photos except for the
M108 were taken at the 2017 MVPA Convention in Cleveland, OH.
Starting in mid-1951 until mid-1954, Cadillac
produced 3,729 Walker Bulldogs. Author's Photo added 4-3-2020.
Author's Photo added 4-3-2020.
M56 "Scorpion" anti-tank guns were also
produced by Cadillac at the Cleveland tank arsenal from 1953 to 1959.
Armed with a 90mm gun, the M56s were used in Vietnam as point defense
and as artillery. There were 150 of the Scorpions built.
Author's Photo added 4-3-2020.
Cadillac started building M42 and M42A1s
Dusters in 1953. The twin 40mm tracked anti-aircraft gun carriage
was based on the chassis of the M41. Cadillac built approximately
3,700 of the Dusters. Author's Photo added 4-3-2020.
Author's Photo added 4-3-2020.
The Cadillac built 3,710 M114s
between 1962-64. The vehicle was amphibious and air-droppable.
Author's Photo added 4-3-2020.
Author's Photo added 4-3-2020.
This is the interior of the M114 looking
through the rear hatch. Author's Photo added 4-3-2020.
This Cadillac-built 105mm M108 self-propelled gun was built in 1963 and is one of only a few built.
This rare example is on display at the New Jersey Militia Museum Annex.
Author's Photo added 4-3-2020.
|