YEAR |
MODEL |
SHAPE |
CENTER PILOT HOLE |
BLADE LENGTH |
NUMBER OF BLADES |
1929-31 |
Pass |
1 |
1 1/18" |
15 3/4" |
Two |
1929-31 |
Pass |
2 |
1 1/18" |
15 3/4" |
Four (Replacement) |
1931 |
Truck* |
2 |
1 1/18" |
15 3/4" |
Four |
1932 |
Pass |
2 |
|
|
Four |
1933-36 |
Pass |
3 |
1 1/8" |
15 3/4" |
Four |
1933-36 |
Truck |
3 |
1 1/8" |
16 1/4" |
Four |
1937-54 |
Pass |
3 |
1" |
|
Four |
|
|
|
|
|
|
From the 1929-40 MASTER PARTS PRICE LIST
CATALOG |
YEARS |
BODY |
|
PART NUMBER |
|
|
1929-36 |
Passenger |
|
836968 |
|
|
1929-31 |
Trucks |
|
836336 |
|
|
1932-36 |
Trucks |
|
837448 |
|
|
Notes: * Dec 2010 - Early truck configuration now confirmed.
"Chevrolet Engineering Features" book lists 4 blade fan as new in 1931
for trucks (commercial vehicles). Reference Page 72. The 1931
Repair Manual on page 37 shows a two bladed fan (shape 1) for 1931
LT trucks. The 1932 Repair Manual shows a four-bladed fan (shape 2). By
the 1934 parts books,
it lists the more modern four-bladed fan (shape 3).