F 350 4WD Pickup V8-7.3L DSL (1988)
CHART USAGE
AXLE
CHART
FIGURE
TRANSMISSION
RATIO
A
6
M50D (close ratio)
3.55
B
7
M50D (close ratio)
4.10
c
8
M50D (wide ratio)
3.66
D
9
M50D (wide ratio)
4.10
E
10
M50D (either gear set)
5.13
F
11
C6/E40D
3.55
G
12
C6/E40D
4.10
H
13
E40D
5.13
^
Charts must not be used at altitudes higher than 2500 feet (762 meters) above sea level and/or 95 degrees F (35 degrees C) ambient temperatures.
The 7.3L diesel engine loses torque at a rate of 10 lbft (13.6 N-m) per 1000 feet (305 meters) above sea level. This loss will affect vehicle
performance. The charts are to be used on the 7.3L sea level calibration only (Calibration 8-89-J-ROO). No high altitude calibration charts will be
published because of low production volumes and vehicle complexity requirements for use in high altitude applications.
^
Do Not test with a trailer. Trailers represent both an increased frontal area and rolling load and are not covered in the charts.
^
Do Not test in winds over 15 mph.
^
A vehicle that equals or is less than the time noted in the charts meets acceptable performance.
^
The charts cover vehicle weight only up to Ford Motor Company's maximum recommendations for a particular chassis and axle ratio. Frontal
areas in excess of the Company's recommendations are included only because it is recognized that the frontal area of a complaint vehicle can't
always be reduced for testing. Operating the vehicle with a frontal area in excess of the Company's recommendation will affect the vehicle's
performance, fuel economy and durability.
Administration Information
OTHER APPLICABLE ARTICLES: 87-10-21
WARRANTY STATUS: Eligible Under Basic Powertrain Warranty Coverage
OPERATION DESCRIPTION
TIME
891208A
Steps 1-3 (Econoline
1.5 Hrs.
w/dual tanks)
891208A
Steps 1-3 (Econoline
1.3 Hrs.
w/ single tank)
891208A
Steps 1-3 (F-Series w/dual
1.4 Hrs.
tanks)
891208A
Steps 1-3 (F-Series
1.2 Hrs.
w/single tank)
891208B
Step 4 (Econoline)
0.4 Hr.
891208B
Step 4 (F-Series)
0.3 Hr.
891208C
Step 5 (F-Series/Econoline)
0.2 Hr.
891208D
Step 6 (F-Series/Econoline)
0.7 Hr.
891208E
Step 7 (Econoline)
0.6 Hr.
891208E
Step 7 (F-Series)
0.7 Hr.
891208F
Step 9 (Econoline w/dual
4.7 Hrs.
tanks)
891208F
Step 9 (Econoline w/ single
4.5 Hrs.
tank)
891208F
Step 9 (F-Series w/dual
4.4 Hrs.
tanks)
891208F
Step 9 (F-Series w/single
4.2 Hrs.
tank)
891208G
Step 10 (All)
1.0 Hr.
891208H
Step 11 (F-Series w/dual
4.5 Hrs
tanks)
891208H
Step 11 (F-Series w/single
4.2 Hrs
tank)
