FORD 3-Speed Automatic Truck/Motorhome
With the GEAR VENDORS dashswitch in "auto" you will have automatic
overdrive just like the vehicle came with a factory system. 28% faster cruising gear nets a
typical 22-28% improvement in fuel mileage. The GEAR VENDORS will shift on and off without
attention of the driver and can be used while towing up to combined weights of 30,000 lbs. An
interactive floorswitch is positioned for the left foot (just like a headlight dimmer) to give
manual control at any moment so that you can turn the overdrive on/off for performance
gear-splitting on grades. A red and green light in the dashswitch indicates the overdrive operation.
Performance while accelerating or climbing grades is greatly improved by the
availability of 6 forward ratios (see Final Drive Ratios). With approximately ˝ the drop in engine
rpm on each gear change and the ability to downshift at ˝ gear intervals much sooner than with
the stock only transmission performance gains of over 40+ horsepower and 50lb ft of torque are
typically minimum, see Horsepower and Torque curves.
Most importantly you are getting this horsepower and torque without modification in any way
to the engine. Any other way of increasing power (chips, induction, exhaust, fuel) all put
stresses beyond the original equipment. With the GEAR VENDORS UNDER/OVERDRIVE™ you get this
power because gears are multipliers of torque, plus the engine can be kept in a narrower
(better performing) rpm range when power is needed. For this reason if you do have performance
modifications the GEAR VENDORS also helps them work to their maximum potential. Not
only do you get performance without engine modification but the overdrive will pay for itself
in fuel mileage alone. Add to this the reduced wear you get from slowing the engine down so
that the same rpms that currently take you only 500 miles will now take you 640 miles.
Most vehicles will experience a mileage increase greater than 22 percent
if driven at the same top speed as they are without the GEAR VENDORS. Increased
mileage and reduced engine wear is why all vehicles today come factory with overdrive.
The GEAR VENDORS UNDER/OVERDRIVE™ will do more for this vehicle
than any Underdrive or Overdrive on the market. You will get all the features normally
associated with an underdrive except a gear below first, plus all the economy of overdrive
because GEAR VENDORS is the only product you can shift under any throttle condition.
The GEAR VENDORS comes with the best warranties in the industry (2 years for
noncommercial use) including a 30 day money back guarantee (see Warranty for details) so
you know you will be happy with everything about how the GEAR VENDORS installs,
drives, and operates. There is no room here to discuss the numerous benefits and situations
that arise where additional gears and torque multiplication make dramatic improvements, so
call us about your application. From endurance and championship off road racing to factory
fitments by quality manufacturers like Oshkosh and Fleetwood, the C6/Gear Vendors is a
proven winner and the best auxiliary transmission you can buy.
FORD 3-Speed Automatic - Muscle Car / Street Rod / Restoration
The Ford C4 and C6 transmissions are two of the best performing, most durable
transmission ever built. By adding a Gear Vendors Under/Overdrive to these transmissions you have
an unbeatable package far superior to any factory overdrive automatic and with 6 close ratio gears
With a 28.6% faster cruising gear your 4.10 rear gears will give you the
same net rpm as a set of 3.20s (3.55s will cruise like 2.77s - see Final Drive Ratios. Your
engine will turn the same revs it does now in 500 miles but take you 640 miles. Fuel economy
will jump 22-28% on a normally aspirated engine and even greater on forced induction
With our dash-switch set on "auto" the car will act just like it came factory with the
overdrive (like Gms Callaway Corvettes that came factory with the Th400 Gear Vendors). The
unit will shift into overdrive without attention of the driver and you can let the wife or
whomever drive the vehicle. When you are behind the wheel and want to experience increased
performance you will set the dash-switch to manual. This allows you to turn the overdrive
on/off at any moment. Leave the line with our red light displayed in AutoLaunch and the
vehicle will shift to 1st-over as the engine revs giving you a torque multiplier much
stouter than 2nd ie - a3.55 cars 1st-over ratio of 1.92 and a final drive of 6.81 is more
torque than a 4.56 rear gear car has in 2nd. Regardless of your rear gear you have never
felt this much bark in your car.
After you are revved up in 1st-over move your shifter to 2nd and hit our button on your
shifter (we shift out instantly) and you are in 2nd. After you have revved up hit the
button for 2nd over (this again is a much closer ratio than 3rd - higher than 4.00 with
a 3.55 rear). The close ratio performance, sound and manual like interaction is an absolute
blast to drive but most important you are getting this performance from the most reliable,
race proven, overdrive on the planet.
The Gear Vendors comes with a 2year unlimited mileage, unlimited
horsepower, unlimited abuse warranty plus a 30 days money back guarantee so you know you
will be happy about everything from how it installs, performs, and drives.
Fords installs of our product are the easiest there is to define.
Virtually every Ford car 1964 and newer you simply bolt us on without any mods to the
tunnel etc. Calls us for all the details. The Gear Vendors is not just the best overdrive
you can put in your Ford muscle car or restoration - it represents a tremendous gain in
performance, mileage, and fun factor, with higher hp handling than any other overdrive
available and installs in just a Saturday morning with regular hand tools.
FORD FINAL DRIVE RATIOS
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|
||Final Drive Ratio
|FMX 3-SPEED AUTOMATIC|
||Final Drive Ratio
Call or e-mail the factory to find out all the options available in your performance
FORD Application Guide 2-Wheel Drive 3-Speed Automatic
GEAR VENDORS, INC. 1717 North Magnolia Avenue, El Cajon, CA 92020
Toll Free 800-999-9555 Telephone (619) 562-0060 Fax (619) 562-1186