TheMODEL T has the same chassis as the Model S except the coupe did not have running boards. The bodies were the same as the 1907 Model M except the folding tonneau was dropped. The Victoria style top was now available for the tonneau of the Victoria Touring.
I. D. DATA
Serial number location
Serial numbers on plate on rear of body (with engine number.
Engine numbers were stamped two places on crankcase:
Top, right edge of cylinder flange, near water outlet.
Top surface of left, front mounting leg.
Also on plate on rear of body (with serial number).
(Blank spaces on patent plate are for additional patent dates, not engine or serial number.)
Engine serial number
24075-24350 with K. M. S (1907), 24351-25832 with S.
2-dr – St. Line Tr.
2-dr. Vic. Tr.
Horizontal, with cylinder to rear.
Number of cylinders
Cast iron cylinder, with copper water jacket
Bore & stroke
127mm x 127mm
“Higher than advertised or calculated”
Updraft mixer manufactured by Cadillac
Model T Touring
Model T Coupe
Optional Front/Rear Tread
30 x 3-1/2
30 x 3-1/2
2 Forward (3:1 and 1:1), Reverse (3:1)
Low (foot pedal), reverse & high (lever to the right)
3.1:1 to 5:1
Mechanical brakes on two wheels; contracting on inboard drums
Wood wheels, 12 spokes
Touring & Roadster Wheel size
On the models M, S & T, different combinations of 9 or 10 tooth driving sprocket with 31, 34, 38, 41, or 45 tooth driven sprocket gave ten possible ratios from 3.1:1 to 5:1.
9 tooth drive sprocket
10 tooth drive sprocket
Lower ratios for runabout to be run on smooth, level roads to higher ratios for loaded Delivery to be run on rough, hilly roads.
Instructions for changing sprockets were available for owners, but the change involved disassembly of the transmission and rear axle — definitely not a “quick-change” set-up.