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Home arrow Overdrives arrow Ford 4 Speed Automatic Trans.




  

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Gear Vendors Overdrive Unit, Ford 4 Speed E4OD & 4R100 and 5 Speed 5R110W Automatic Transmission Print E-mail

Gear Vendors Save Gas or Diesel Fuel Extend Mileage, Extend Engine Life, Start Saving Money Today!  An Ideal Performance Upgrade for F-150, F250, F-350, F-450 and F550's

Does your Ford need more power to climb hills or tow with heavy loads, plus at the touch of a button taller gearing for cruising down the highway with the lower engine RPM's and improved fuel mileage? If yes, see our application guide. There are two basic Ford 4-Speed automatics: The light duty AOD/4R70 found mainly in half ton or lower applications, and the heavy duty E40D/4R100 in the heavy 1/2 plus all 3/4 and 1 ton trucks and motorhomes. These transmissions have a low first gear which is good for initial take off but this makes the transmission have very wide ratio changes. The intention by the designers was the best possible EPA mileage ratings, not performance. Our Ford overdrive transmission provides 500 to 600 less RPM's plus 20% increase in fuel economy. You'll need an auxiliary overdrive transmission capable of gear splitting behind your transmission. The toughest built best performing auxiliary overdrive transmission you can buy is the Gear Vendor overdrive from Drivetrain.com. We offer free technical support – give us a call 800-216-1632 let us help save you some money!

See How It Works, Guaranteed Amazing Performance for Your Ford

Gears are multipliers of torque and our Ratio Splitting capability allows you to shift to a gear with more mechanical advantage than the next stock gear in automatic transmissions and wide ratio manuals. This also means engine rpm drops about half what it did without the Gear Vendors and so rpm is sustained - higher torque and rpm on shift = more Horsepower. When shifted into overdrive final gear reducing both rpm and torque to reduce the manufacture of HP when steady cruising to improve fuel mileage and decreases wear on your engine. Two-year warranty rated at 30,000 pounds applications for Ford, most beneficial when used in commuters, tow vehicles, 5th wheels and motorhomes. Our gear vendor overdrive kits are very complete and are designed for your specific vehicle, detailed installation instructions are included in kit, and installation is also available. Related to fuel economy, performance, and emissions — Gear Vendors overdrive units include state of the art electronics circuits that keep your vehicle in the optimum performing gear. Whether you are driving a older non-computer controlled vehicle or a late model with all the latest emissions computers our electronics provide the interface to ensure maximum performance and correct rpm without lugging or over revving in the wrong gear. The OE factory programming remains intact and our processor just makes it aware of the actual ratio 1,000 of times per second. In older vacuum or throttle linkage transmissions the stock governor on the output shaft instantly slows down the moment the overdrive shifts and so automatically moves the shift point in any overdrive gear up by the correct 28.6%. So both electronic and non-electronic automatic transmissions gain a group of features including a passing gear or climbing gear that is automatically available without driver intervention and is at the split between 2nd and 3rd where you really want it. Need more information on how to save gas or diesel fuel? Our technicians can help and our support is Free! Give us a call at 800-216-1632!

Gear Vendor's Complete Kits Ensure a Smooth Installation for You

Gear Vendor Overdrive Kits are complete with adapters. Our gear vendors overdrives are supplies with specific adaptation kits for each model of transmission model, the kits are completed. By supplying specific extension housings to each model/brand transfer case GEAR VENDORS is able to have a better product with gvyoutubesema2008.jpg increased engineering benefit to the final installation. Fact is, when you are in 4X4 there is very little desire to use GearSplitting and overdrive unless you are racing (and we do make the in-between kit for that purpose), it's 2wd where the benefits of overdrive and additional gears are most needed, see YOUTUBE video for more information. All our kits bolt directly to the rear of the transmission, you can manually control the unit or we suggest you flip switch when leaving city limits sign and turn it off when you get to next city limit sign. No additional crossmembers are required and you retain the factory ground clearance instead of moving the transfer case rearward which puts it at or nearer the middle of the wheelbase where ground clearance is most critical. You get all the benefits of the GearSplitting performance and overdrive economy (see your appropriate transmission under GM/Dodge/Ford 2wd) and the best auxiliary transmission you can buy.

Call us for your Ford AOD Transmission needs. We offer free shipping on some items!

Free Technical Support, Get Expert advice about your vehicle's performance with our Gear Vendorss Overdrive. Call toll free at 800-216-1632. More fuel milage 20%, 600 RPM reduction in Engine RPM means longer life and you save Money!

You get all the benefits of the GearSplitting performance and overdrive economy (see your appropriate transmission under GM/Dodge/Ford 2wd) and the best auxiliary transmission you can buy. Give our overdrive expert a call toll free 800-2161632 he can answer your questions and help you pick correct model for you application, and get free telephone support during installation when you purchase from www.drivetrain.com. Free shipping within the continental United States only.

  • You need quality.
  • You'll want reliability.
  • You want performance 22% overdrive.
  • You want better mileage 20% more fuel economy!

YOU WANT A GEAR VENDOR

YOU GET ALL THESE BENEFITS & MORE

Bolt on Performance and Economy! 

    Ford Gear Vendor Overdrive Click to enlarge
  • Save Fuel
  • Extend Engine Life
  • Save Money
  • 30,000 lbs Capability

Ford 4 Speed Automatic Truck/Motorhome   Ford E4OD/4R100 4 Speed Automatic Application Chart & Pricing
Ford E4OD/4R100 4 Speed Automatic Final Drive Ratio   Ford Horsepower and Torque Curves

FORD 4-Speed Automatics Cars/Trucks/Motorhome's

There are two basic Ford 4-Speed automatics: The light duty Ford AOD found mainly in half ton or lower applications, and the heavy duty E40D in the heavy 1/2 plus all 3/4 and 1 ton trucks and Motorhome's AOD’s have a low first gear which is good for initial take off but this makes the transmission have very wide ratio changes. The intention by the designers was the best possible EPA mileage ratings, not performance.

The Gear Vendors will give you Gear Splitting to fix those wide ratios with a gear between each of them for tremendous gains in performance. This is a custom application which requires a four wheel drive extension housing. We can work with the lockup torque converters on all the later models which are electronically controlled or on the early models if they are no longer using the lockup.

The Gear Vendors also gives you an important overdrive gear that is between the really tall factory ratio and Drive (3rd). This gear will give you 11% more torque multiplication and lower transmission temperatures by as much as 100 degrees when compared to factory overdrive. Double overdrive is also available when conditions are right (very fast).

E40D’s used in Motorhome's and trucks have a .71 overdrive ratio which is very tall. This transmission was designed to give the best EPA mileage rating, not for performance. Consequently you should often be wishing for a gear between 3rd and overdrive (4th) when towing. The Gear Vendors will not lock and unlock repeatedly (hunt) and will also reduce temperatures in the main transmission as much as 100 degrees on warm days. Consequently all our customers tow in the Gear Vendors ratio and greatly extend the life of the trans.

Trucks running empty can make use of double overdrive for great economy and extended engine life. Motorhome's present too large a frontal area to the oncoming wind to make double overdrive practical but because they are always loaded they greatly need the Gear Splitting and alternative Overdrive features of the Gear Vendors.

Gear Splitting is the feature that allows the UNDER/OVERDRIVE to shift between the gears. You will now have approximately 1/2 the drop of engine rpm from one gear to the next when you want power. This is why a Gear Vendors will give you more power than any underdrive or overdrive on the market (see common questions).By keeping torque multiplication higher and engine rpm narrower you increase engine performance by typically more than 40hp and 60lb ft. of torque without any modifications to the engine (see Final Drive Ratio charts and Horsepower and Torque curves in this section) (see also common questions on performance modifications).

This is why big trucks (Kenworths etc.) use gears (most 18 wheelers have 15 to 21 gears) instead of modifications. Because gearing gives them performance which actually improves the reliability of the engine. The heavier you are loaded the more you need a Gear Vendors.

If you already have engine modifications (chips, exhaust, fuel increases, etc.) the Gear Vendors will let you get the most from them through working in narrower rpm ranges when loaded and also by adding torque multiplication the GEAR VENDORS makes it easier on the engine and transmission to propel the vehicle.

The GEAR VENDORS comes with a 2-year unlimited mileage warranty (on non commercial applications). The Gear Vendors is the only after market performance device or auxiliary transmission that comes as original factory equipment on new cars, trucks, vans or Motorhome's. Over 1 million in the 80’s and 90’s were installed by manufacturers on vehicles; i.e.; Ford Diesel Transit Vans (European market), Volvo gas and diesel, Fleetwood, Allegro, Rexhall, Monoco and others Motorhome's and GM’s Twin Turbo Callaway Corvette.

If you’re vehicle is heavily loaded or you just love performance the Gear Vendors is the ultimate option. Call our customer service line @ (800) 216-1632.

Find you transmission and rear gear multipliers below. The Final Drive Ratio shows you how many times the engine turns for one complete turn of 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 gear splitter 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 let off of the accelerator or is not intended to shift frequently is not going to give you this performance. Order yours now at 800-216-1632.

Final Drive Ratio E4OD / 4R100 4-Speed Automatic Overdrive
           Axle Ratio    
  Rear End Ratio 5.38 5.13 4.88 4.63 4.3 4.1 3.73 3.55
                   
  Trans Ratio        Final Drive Ratio    
1st 2.71 14.58 13.9 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 7.9 7.51 7.13 6.62 6.31 5.74 5.47
Over 1.2 6.46 6.16 5.86 5.56 5.16 4.92 4.48 4.26
3rd 1 5.38 5.13 4.88 4.63 4.3 4.1 3.73 3.55
Over 0.78 4.2 4 3.81 3.61 3.35 3.2 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 2.7 2.57 2.38 2.27 2.06 1.9

Ford Application Guide 2 Wheel Drive 4-Speed Automatic

Part Number

Application

Description

Comments

Price

3D0E40A E40D 4 Speed Automatic w/overdrive.
Replaces 10.5" tail housing, see the kit. 1989 and newer 3/4, 1 ton trucks, vans and class "C" Motorhome's w/out driveline parking brake.  Note if speedo is driven from trans. tail housing (1989-1992) or rear differential (1992 1/2 Diesel, 1993 and newer gas) Some 1998's have mechanical speedo

  $2945.00

3D0E40E 
E40D Automatic 4-Speed.
Replaces 10 1/2" tailhousing, see the kit. 93-97 3/4,1 ton pickups, vans, and class C motorhomes w/out driveline parking brake. 
  $2945.00
3D4R100A 4R100 4 Speed Automatic w/overdrive.
Replaces 10.5" tail housing, see the kit. 99 3/4,1 ton pickups, vans, and class C motorhomes w/out driveline parking brake. $2945.00
3D4R100E 4R100 Automatic 4-Speed. Replaces 10.5" tail housing, see the kit. 2000-2001 F150/250/350/450/550 trucks, vans, and class C motorhomes w/out driveline parking brake. 
  $2945.00
3D5R110A 5R110W Automatic 5-Speed. Replaces PTO companion flange, see the kit.
03 to 07 6.0 Diesel Engines, 08 and up 6.4 Diesel engines, 3/4,1 ton pickups, w/out driveline parking brake. $2945.00
We have included a frequently ask questions section that may answer some of your questions, don't see answers you need, just give us a call we will be happy to review your application with you. The following links provide specific application information, performance data that you can expect and the price data for your specific vehicle.

 
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