AA Chassis

2024/01/12 update

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Chassis and Chassis Parts Production Dates-Count Chassis Usage*2
Start End Count Total*1 Ford – % IBS – %
Neil Wilson 2018
Chassis – AA112 07/31 12/32 863 445 52% 418 48%
Chassis – AA131 with AA-5005 d1 frame 171-5/16″ 12/27 06/28 219,947 385,623 94,362 43% 125,585 57%
Chassis – AA131 with AA-5005 d2 frame 171-5/16″ 05/28 12/29
Chassis – AA131 with AA-5005-B d1 frame 171-5/16″ 01/30 03/31 125,907 63,099 38% 102,578 62%
Chassis – AA131 with AA-5005-B d2 frame 169-13/16″ 03/31 12/32 39,769
Chassis – AA131 with AA-5005-D frame 181-5/16″ 03/31 12/32
Chassis – AA140 01/32 3 0% 3 100%
Chassis – AA157 with AA-5006 tapered frame 05/30 12/30 27,979 63,505 5,748 21% 22,231 79%
Chassis – AA157 with AA-5008 parallel frame 01/31 12/32 35,526 14,483 41% 21,043 59%
Chassis Totals 449,994 178,137 40% 271,857 60%
spacer row
Dual High Transmission 12/27 12/29 62,540
Dual Wheel Sets 01/30 04/32 154,456
High Speed Axles (no ART counts listed before Aug.) 08/30 12/32 94,241
*1 – High Speed Axle counts were not reported through July of 1930. See note below table.
*2 – Chassis Usage – Ford – % = count and % of chassis used by Ford for closed body or cab with open-cargo-body or cab with hoist
Chassis Usage – IBS – % = count and % of chassis sold as cab/chassis or chassis only for Independent Body Supplier

Note – High Speed Axle counts were not reported through July of 1930. FMC ART started showing the High Speed Axle column in August 1930 (incorrectly titled Dual High). The column title was corrected starting September 1930.

The high speed axle was announced in the March 1930 Ford Service Bulletin. Consequently, this count does not reflect a complete count.

AA Chassis Overview

The table above shows AA Chassis totals based on FMC ART ledgers. Many of these chassis were used to assemble complete trucks using Ford sold bodies. Some were assembled/sold with a cab only for non-Ford installed cargo bodies and some were sold as a chassis for non-Ford installed bodies.

The Ford AA chassis were produced from December 1927 through December 1932.  The AA chassis was rated at 1-1/2 tons (an upgrade from the 1 ton TT rated chassis).

The initial AA chassis had a 131-1/2” wheel base. Starting May 1930 Ford produced a 157” AA wheel base chassis. A standrive type 112” AA wheel base chassis began production in July 1931. These three chassis are referenced as AA131, AA157, or AA112 within this AA Fords site. There were three 140″ wheel base chassis reported for January 1932. No information is currently known about this AA140.

AA131 Chassis – 4-xmember frame - 12/27/27 photo
AA131 Chassis – 4-xmember frame – 12/27/27 photo

The photograph above shows what Ford included as a complete AA131-chassis. This chassis was offered to customers wanting to use an independent body supplier (IBS) or manufacture their own body.

The AA-chassis included the frame assembly,engine and drive line, radiator and shell, steering system, hood, cowl with cowl tank and floor board #1, electrical system, horn, headlamps, tail lamp, front fenders, running boards, shields and tools. A fifth wheel plus lock ring was also provided. This chassis was a drivable unit.

About 57% of all AA-chassis produced were sold for IBS installation.

Ford issued several releases of a “Parts Price List” booklet covering everything in the photo above and some additional parts such as the wheel carriers, cowl lamps, rear view mirror,  windshield wiper, and more. Parts were in numerical sequence and sub-divided into part groups.

Chassis Gallery

AA131 Chassis – 5-xmember frame – 6/12/28 photo
AA131 Chassis – 5-xmember frame – 6/12/28 photo
AA131 Chassis – 5-xmember frame – 2/3/29 photo
AA131 Chassis – 5-xmember frame – 2/3/29 photo
AA157 Chassis – Tapered Frame – 1930 Lubrication Drawing
AA157 Chassis – Tapered Frame – 1930 Lubrication Drawing
AA112 Chassis – Standrive Frame – 6/25/31 photo
AA112 Chassis – Standrive Frame – 6/25/31 photo

AA Chassis Part Groups

For A-Z sequenced, part groups with detail information click:

Ford “Parts Price List” booklet, numerically sequenced, part groups:

AA-1000 Wheels
AA-1400 Wheel Carrier
AA-2000 Brake Systems
AA-3030 Front Axle
AA-4000 Rear Axle
…A-45.. U-Joint Housing Caps+ – at 3-speed – see AA-4802 Coupling Shaft
A & AA-45.. U-Joint Housing Caps+ – at torque tube – see AA-4802 Coupling Shaft
AA-4802 Coupling Shaft
AA-4830 Dual High
AA-5000 Frame
…A-5151 Battery Support
AA-5230 Muffler
AA-5310 Front Springs
AA-5560 Rear Springs
…A-6005 Engine – A parts only
AA-7006 Transmission – 4-speed
AA-7080 U-Joint (bipartible-aftermarket) – at 4-speed – see AA-4802 Coupling Shaft
…A-7090 U-Joint – at 3-speed – see AA-4802 Coupling Shaft
AA-7090 U-Joint – at drive shaft – see AA-4802 Coupling Shaft
AA-7208 Gear Shift – 4-speed
AA-7501 Clutch
AA-8005 Radiator
AA-13510 Electrical System
AA-16000 Fenders
…A-16600 Hood
AA-17000 Tools
AA-17200 Speedometer
A & AA-17681 Rear View Mirror
AA-17750 Bumper
AA-18330 Spare Wheel Lock

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