How do I identify it? Where are the numbers?

 

The easy way is the pan on the trans a c4 is 11 bolts and a perfect square,But a c5 is the same but has a deeper pan on it.Look at the pictures on here http://www.fortdodgetransmission.com...fication-ford/

 

What about the year?

 

should be behind selector switch a code inbedded in case decyphering is as follows -
1ST LETTER IS DECADE:
A = 1940'S (OFTEN OMITTED)
B = 1950'S
C = 1960'S
D = 1970'S
E = 1980'S
F = 1990'S

SPECIFIC YEAR OF PART:
0
1
2
3
4
5
6
7
8
9

THIRD LETTER IS THE CAR MODEL:
A = FORD (GENERIC) / GALAXIE
C = TRUCK
D = FALCON
E = EXPLORER
F = FOREIGN / TRANS AM RACING
G = COMET (LATER MUSTANG)
H = HOLMAN/MOODY HiPo PART
J = INDUSTRIAL
L = N/A
M = MERCURY
N = N/A
O = FAIRLANE (LATER TORINO)
P = AUT0LITE (LATER MOTORCRAFT)
Q = N/A
R = ROTUNDA (GENERIC)
S = THUNDERBIRD
T = TRUCK
U = ECONOLINE/CLUB WAGON VAN
V = LINCOLN
W = COUGAR
Z = MUSTANG


THE FOURTH LETTER IS THE PART TYPE:
A = CHASSIS
B = BODY
D = N/A
E = ENGINE
F = ENGINE ACCESSORIES
J = AUTOLITE
M = HOLMAN MOODY
P = AUTO TRANNY
R = MANUAL TRANNY
S = N/A
U = N/A
W = AXLE
X = MUSCLE CAR PARTS
X = LINCOLN / MERCURY SERVICE PARTS
Z = SERVICE PARTS

 

Thanks!