Gear Vendor Under/Overdrive Ford
Home Page
Contact Us
Buy Now
Magazine Articles
Video Clips
Testimonials
Hot Rods
Racing
Restoration / Classic
Trucks / Towing
4 X 4
Motorhome
Commercial
Application Guide
Price Schedule
Installation
Warranty
Common Questions
Apparel
Factory Tour

SEMA Member

Gear Vendors BBB Business Review

BBB Rating


ABOUT SSL CERTIFICATES

FORD FINAL DRIVE RATIOS

Gears Under/Overdrive Find your transmission and rear gear multiplier below. The Final Drive Ratio shows you how many times the engine turns for one complete turn of the tires. This Final Drive number is also your torque multiplier when in that gear. GEAR VENDORS reputation for being the best is because of its sophisticated planetary construction. This means GEAR VENDORS is the only auxiliary intended as a GearSplitter behind automatics and the nicest to work behind both automatics and manuals. You are able to shift half gears that keep the engine in the power. Any auxiliary that requires you to lift off the accelerator or is not intended to shift frequently is not going to give you this performance.

There is not room here to cover all the details so call the factory to discuss the full benefits demonstrated on these charts.

C4/C6 3-SPEED AUTOMATIC
    Axle Ratio
    5.13 4.88 4.56 4.10 3.90 3.73 3.55 3.23
  Trans Ratio Final Drive Ratio
1st 2.46 12.62 12.00 11.22 10.09 9.59 9.18 8.73 7.94
Over 1.92 9.84 9.36 8.75 7.87 7.49 7.16 6.81 6.19
2nd 1.46 7.49 7.12 6.66 5.99 5.69 5.45 5.18 4.72
Over 1.14 5.84 5.55 5.19 4.67 4.45 4.25 4.04 3.68
3rd 1.00 5.13 4.88 4.56 4.10 3.90 3.73 3.55 3.23
Over 0.78 4.00 3.81 3.56 3.20 3.04 2.91 2.77 2.52

 

FMX 3-SPEED AUTOMATIC
    Axle Ratio
    4.10 3.90 3.70 3.50 3.25
  Trans Ratio Final Drive Ratio
1st 2.40 9.84 9.36 8.88 8.40 7.80
Over 1.87 7.66 7.29 6.92 6.54 6.07
2nd 1.47 6.02 5.73 5.44 5.14 4.77
Over 1.14 4.67 4.44 5.44 3.99 3.70
3rd 1.00 4.10 3.90 3.70 3.50 3.25
Over 0.78 3.20 3.04 2.88 2.73 2.53

 

E4OD / 4R100 4-SPEED AUTOMATIC OVERDRIVE
    Axle Ratio
    5.38 5.13 4.88 4.63 4.30 4.10 3.73 3.55
  Trans Ratio Final Drive Ratio
1st 2.71 14.58 13.90 13.22 12.55 11.65 11.11 10.11 9.62
Over 2.11 11.37 10.84 10.31 9.79 9.07 8.67 7.89 7.51
2nd 1.54 8.29 7.90 7.51 7.13 6.62 6.31 5.74 5.47
Over 1.20 6.46 6.16 5.86 5.56 5.16 4.92 4.48 4.26
3rd 1.00 5.38 5.13 4.88 4.63 4.30 4.10 3.73 3.55
Over 0.78 4.20 4.00 3.81 3.61 3.35 3.20 2.91 2.77
4th Ford O/D 0.71 3.82 3.64 3.46 3.29 3.05 2.91 2.64 2.52
Double Over* 0.55 2.98 2.83 2.70 2.57 2.38 2.27 2.06 1.97
*Note: Double Overdrive not to be used when towing or loaded.

 

5R110W 5-SPEED AUTOMATIC OVERDRIVE
    Axle Ratio
    5.13 4.88 4.63 4.10 3.73 3.55
  Trans Ratio Final Drive Ratio
1st 3.09 15.85 15.08 14.31 12.67 11.52 10.97
Over 2.41 12.33 11.73 11.13 9.86 8.97 8.53
2nd 2.20 11.29 10.74 10.19 9.02 8.20 7.81
Over 1.71 8.78 8.35 7.92 7.02 6.38 6.08
3rd 1.53 7.85 7.47 7.08 6.27 5.71 5.43
Over 1.19 6.11 5.81 5.51 4.88 4.44 4.23
4th 1.00 5.13 4.88 4.63 4.10 3.73 3.55
Over Not used   no way to hold 5R110 in 4th
5th 0.71 3.64 3.46 3.29 2.91 2.65 2.52
Double Over* 0.55 2.83 2.70 2.56 2.26 2.06 1.96
*Note: Double Overdrive not to be used when towing or loaded.

 

T-19 4-SPEED MANUAL (Diesel & Gas Final Drive Ratios)
    Axle Ratio   Axle Ratio
  Diesel 4.10 3.55 Gas 4.10 3.73 3.55
  Trans Ratio Final Drive Ratio Trans Ratio Final Drive Ratio
1st 4.02 16.48 14.27 5.11 20.95 19.06 18.14
2nd 2.41 9.88 8.56 3.03 12.42 11.30 10.76
Over 1.88 7.71 6.68 2.36 9.69 8.80 8.39
3rd 1.41 5.78 5.01 1.79 7.34 6.68 6.35
Over 1.10 4.51 3.91 1.40 5.73 5.22 4.95
4th 1.00 4.10 3.55 1.00 4.10 3.73 3.55
Over 0.78 3.20 2.77 0.78 3.20 2.91 2.77

 

ZF 5-SPEED MANUAL (Diesel & Gas Final Drive Ratios)
    Axle Ratio   Axle Ratio
  Diesel 5.13 4.10 3.55 Gas 4.10 3.55
  Trans Ratio Final Drive Ratio Trans Ratio Final Drive Ratio
1st 4.14 21.24 16.97 14.70 5.72 23.45 20.31
2nd 2.37 12.16 9.72 8.41 2.94 12.05 10.44
Over 1.85 9.48 7.58 6.56 2.29 9.40 8.14
3rd 1.42 7.28 5.82 5.04 1.61 6.60 5.72
Over 1.11 5.68 4.54 3.93 1.26 5.15 4.46
4th 1.00 5.13 4.10 3.55 1.00 4.10 3.55
Over 0.78 4.00 3.20 2.77 0.78 3.20 2.77
5th Overdrive 0.76 3.90 3.12 2.70 0.76 3.12 2.70
Double Over* 0.59 3.04 2.43 2.11 0.59 2.43 2.11
*Note: Double Overdrive not to be used when towing or loaded.

 

M 6HD 6-SPEED MANUAL
    Axle Ratio
    4.88 4.30 4.10 3.73 3.55
  Trans Ratio Final Drive Ratio
1st 5.79 28.30 24.90 23.74 21.60 20.56
2nd 3.31 16.20 14.23 13.67 12.35 11.75
Over 2.58 12.60 11.09 10.58 9.62 9.16
3rd 2.10 10.30 9.03 8.61 7.83 7.45
Over 1.64 8.00 7.05 6.72 6.12 5.82
4th 1.31 6.39 5.63 5.37 4.89 4.65
Over 1.03 5.03 4.43 4.22 3.84 3.66
5th 1.00 4.88 4.30 4.10 3.73 3.55
Over 0.78 3.81 3.35 3.20 2.91 2.77
6th O/D 0.72 3.51 3.10 2.95 2.69 2.56
Double Over* 0.56 2.74 2.42 2.30 2.10 2.00
*Note: Double Overdrive not to be used when towing or loaded.

 

info@gearvendors.com

GEAR VENDORS, INC. 1717 North Magnolia Avenue, El Cajon, CA 92020
Toll Free 800-999-9555 • Telephone (619) 562-0060 • Fax (619) 562-1186