• 4 Speed Automatic Transmission Shifter
• Gm 4 Speed Automatic Transmission
• Ford 4 Speed Automatic Transmission

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1963-1966 Mopar A Body Crossmember Automatic Transmission 4 Speed Manual. Was: Previous Price $132.99. The fourth gear allows the engine it is installed behind to rotate at lower RPM than a three-speed transmission, and this not only will save on gas and engine wear, but it also allows you to change to larger rear axle ratios without severely impacting streetability. Which Is Better Between CVT and Automatic Transmission? One of the advantages of a CVT is its ability to continuously change its gear ratio. This means that no matter what the engine speed it, it. DODGE 4-Speed Automatic Performance Car / Street Rod / Sport Truck The 518/618/47RH factory overdrive transmission was designed for improving Dodge’s CAFE (Corporate Average Fuel Economy) ratings. Because of this it has a very tall.69 overdrive ratio. Many classic cars that used an original Powerglide two-speed or TH-350 three-speed can benefit from installing a TH-200-4R four-speed automatic without having to perform major modifications. The 200-4R can be used on many other GM passenger cars because it was manufactured with both a Chevrolet and a B-O-P bellhousing bolt pattern.

The 700R4 is a 4 speed automatic transmission, with a 30% overdrive in 4th gear. This transmission was produced by General Motors, but is also sometimes known by the name Hydramatic.

The development of this transmission was primarily targeted to improve fuel economy, and this was accomplished by a number of modifications, not the least of which was the 30% overdrive capability.

The 700R4 was used widely on both truck platforms and rear-wheel drive car platforms. Some of the popular trucks it was used in were the Chevrolet Blazer and Suburban and the Oldsmobile 350 diesel. This transmission was also used in the Chevrolet Camaro, Corvette, Impala, and many others.

Pros and Cons

The 700R4 was first introduced in 1982, and served as a replacement to the TH350, which was a 3 speed automatic transmission. As is expected with all new system, especially with such a major re-design, some design issues were present with the original release.

There was constant improvement, and by 1987 this transmission was much more robust and reliable. There was a name change to 4L60 that occurred in 1990, although this was essentially the same transmission.

In 1993 the transmission became electronically controlled, instead of hydraulically, and the name became 4L60E.

For the purposes of this article, the focus will be pre-electronic control. At this time, all of the regular 700R4, or 4L60 transmissions began to be phased out, and none are available in that format any longer.

This transmission was very popular and considered one of the best of ever produced. Two of the key reasons for its popularity were the improved fuel consumption and the 3.06:1 gear ratio in 1st gear. This is a much lower ratio than what was common, and provides good acceleration from a stop and is also good for off-road driving.

700R4 Performance Specs

As mentioned, the 700R4 was a 4 speed automatic transmission. When the transmission was renamed to 4L60 in 1990, this naming convention provided a number of key characteristics about this transmission.

The 4 indicates that it is a 4-speed transmission. The L denotes that the transmission is longitudinally positioned. The 60 indicates that the transmission is rated for applications up to 6000 lbs gross vehicle weight (GVW).

The amount of torque that this can handle will vary based on year of production, but one website states that the max engine torque is 350 lb-ft with a max gearbox torque of 650 lb-ft.

The gearing that was used was 3.06 for first gear, 1.63 for second, 1 for third gear, and 0.7 for fourth gear, essentially a 30% overdrive. The reverse gear in this transmission is 2.9.

Construction

The 700R4 case is a single piece constructed of cast aluminum. The transmission is 23.4 inches long and weighs 155 pounds. The transmission holds a total of approximately 11 quarts of transmission fluid.

The 700R4, produced by General Motors/Hydramatic, is considered one of the best overdrive transmissions ever made. This transmission was introduced in 1982 as a replacement for the TH350 transmission, with the primary goal of improving fuel economy.

This transmission had a lower first gear ratio, which was good for performance at low vehicle speeds, while the 30% overdrive provided significant fuel economy improvement.

The name changed in 1990 to 4L60, while the most significant change came in 1993 when the electronically controlled transmissions were introduced. This was essentially the end of the 700R4, or 4L60, as we knew it.

The 518/618/47RH factory overdrive transmission was designed for improving Dodge’s CAFE (Corporate Average Fuel Economy) ratings. Because of this it has a very tall .69 overdrive ratio. The GEAR VENDORS fixes the wide ratio problems so that when you want performance you have a gear between each of the factory ratios that give you approximately half the drop in engine rpm and torque multiplication (see final drive ratios).

You can easily have increases in horsepower in the 50+ range and torque boosts of 70lb ft. just by gear splitting. With 8 forward gears available the motor stays in a narrow rpm band of performance. The .78 ratio of the GEAR VENDORS gives an alternative overdrive ratio to the very tall factory gear and the GEAR VENDORS can be used with virtually unlimited horsepower (if it is 1200hp or less it gets the standard product). If you have a car or hotrod truck also read the 3-speed 2 wheel drive section. If you have a truck used for towing read also the 4-speed automatic truck section.

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 let 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.

4 Speed Automatic Transmission Shifter

Gm 4 Speed Automatic Transmission

Call or e-mail the factory to find out all the options availalbe in your performance application.

1-800-999-9555

Ford 4 Speed Automatic Transmission