Beefing Up the Gm 2004r Transmission

200-4R vs. 700R4 transmissions are two four-speed automatics that are always compared side-by-side for their similarities, yet unique differences. They may have been released in the 1980s, only where one fails the other makes up for it. It's also worthy to notation that the 200-4R vs 700R4 strength has been improved from what they were a couple of years agone.

They have been beefed up in every possible way to be a better replacement to whatsoever car that uses the TH350, TH400, or generally, a musculus motorcar. Fuel economy for which they were launched for has been upwardly by 30 percent based on their real-life operation.

Yet, the same level of functioning may not exist axiomatic if you rely on the stock transmissions of either even though they are not as common as they used to be. Now that'due south out of the style, let's accept a look at either transmission specs, bug, and selling signal.

The 200-4R Manual

The 200-4R transmission is one amidst several other transmissions manufactured past General Motors, an American multinational corporation based in Detroit. The transmission was launched in 1981 for the year's model car and information technology is the lesser of the duo overdrive transmissions that were launched effectually the same fourth dimension.

So, what cars came with a 200-4R transmission, permit'due south have a quick expect:

• • KZ
  • 442
  • CZ Monte SS
  • OZ Hurst Olds
  • BR One thousand Nationa
  • CQ Chevy 5.0L H.O.

The 700R4 Transmission

The Turbo Hydra-Matic 700R4 manual was also manufactured by General Motors (GM) in 1982. It is also one of the get-go overdrive automatic transmissions launched by GM. The 700R4 transmission cars at the time were non limited to Corvettes, Camaro, Chevrolet, and pickup trucks.

200-4R vs. 700R4 Similarities

The 200-4R vs 700R4 similarities include the following:

1. Release Period

The 200-4R and the 700R4 transmissions were both released in the 1980s. At the time, there was a high need for cars with fuel economy and as such, the duo became the answer to the growing need.

2. Television set Cablevision

The 200-4R and 700R4 apply a Throttle Valve (Television set) Cablevision or detent cable instead of the kick down cable that controls the TH350 and TH400 transmissions.

What a Idiot box Cable does is to serve every bit a primitive throttle position sensor enabling either transmission to maintain the best RPM (revolutions per minute) possible for fuel economy and peak operation. Information technology also enables them to shift smoother which allows a driver to switch between gear ratios seamlessly.

Nonetheless, there is still a 200-4R and 7004R transmission problems which have been pointed out time again. One of such stems from their TV Cable which has been said to be a bit choosy, thereby causing them to shift too hard, early or later than expected.

3. Overdrive

An overdrive is reputably known as a transmission's highest gear. It enables the transmission to operate at a low RPM at whatever given road speed and every bit a result, it uses fuel efficiently and operates more than quietly on the highway.

How does this relate to the 200-4R and 700R4? They also feature overdrive gears and they were notably the first GM automated transmissions to feature such.

Today's 4L60E finds its rooting from the 700R4 and like the latter, information technology has a .70:1 overdrive gear and basic pattern. The 200-4R, on the other hand, features a ratio of .67:1 which is known to be more aggressive and let the engine to move 3 percent slower downwardly a highway.

200-4R vs. 700R4 Differences

There are also unique differences betwixt the 200-4R and 700R4 transmissions and some of these include:

1. Appearance

Is in that location whatever fashion of telling the 200-4R manual from the 700R4 from the outlook? Definitely! Y'all will need to rely on their pan bolt count and pattern.

It could exist a little catchy in the aspect of the pan bolt count since the 200-4R vs 700R4 have the same number of pan bolts which is 16. However, the pattern or angle of the pan bolts is a dead giveaway as to which is which.

Showtime, you need to count all the pan angles and if it is a half dozen angled, so its definitely a 200-4R. On the other hand, it is a 700R4 if it has is equivalent to a 4 angled foursquare. It also has a bigger pan and longer tail-shaft length than the 200-4R

2. Gearing

I of the virtually notable differences between either is in their overdrive gear. The 200-4R manual has a .67:i which is considerably more aggressive than the 700R4's .lxx:1 overdrive gear. An overdrive gear of this nature on the 200-4R is equivalent to a low RPM when one is driving downwardly a highway. Hither's a more than precise breakdown of the overdrive gear ratios of both transmissions:

First Gear

• • 200-4R: 2.74
  • 700R4: 3.06

Second Gear

• • 200-4R: one.57
  • 700R4: 1.62

Third Gear

• • 200-4R: i.00
  • 700R4: 1.00

Quaternary Gear

• • 200-4R: 0.67
  • 700R4: 0.70

The data above shows that the 200-4R's 2.74 kickoff gear is closer to the TH350 two.52's commencement gear and even closer than the 700R4 (3.06). At that place is also the length of 27 11/16″, the width of 19 1/8″, and 27 spline output shaft being shared by both the TH350 and 200-4R. As a consequence, the 200-4R  is a meliorate replacement to the TH350 in comparing to the 700R4.

Which Transmission Is Amend?

Which is the ameliorate option between the 200-4R vs the 700R4 transmission can be adamant by a number of factors and these are:

1. Purpose of the Motorcar

The first obvious reason is the purpose the auto will be put to. Is information technology for drag racing or street ride? If it'due south for drag, and so you're improve off with 200-4R thanks to the closeness of its gear ratios. At that place are, however, two limitations to the 200-4R in this aspect.

You'll have to shift it manually equally y'all race if not the shift points will be low. It is also expensive to find one that has been well-congenital. On the other paw, street employ tin can be optimized with the 700R4 and as such, y'all'll need this type for a street-worthy vehicle.

2. Aftermarket Back up

Consideration is also to be given to which is more common in social club to ensure that you can easily find aftermarket support in case you run into issues with the transmission. That being so, the 700R4 would be a amend pick since information technology meets the criteria above.

three. Strength

A comparison of the 700R4's first and 2nd gear shows that there is a big departure between them. This results in a larger RPM drop in the gears in comparison to the 200-4R. There is also the longer nature of the 700R4 which requires certain modifications in gild to cantankerous fellow member and driveshaft.

Conversely, the 200-4R can be fabricated to be stronger than the 700R4. It is, however, worthy to note that the 200-4R is popularly known every bit the weaker of the 200-4R/700R4 pair.

Conclusion

The 200-4R vs the 700R4 manual comparisons testify their strengths and weaknesses besides as their similarities and differences.

Despite this, they are still a great choice of transmission if ane is looking to increase the MPG (Miles Per Gallon) and reduce the RPM as the vehicle moves down the highway. Your choice of which should be determined by the apply you want to put information technology to.

Nevertheless, the 700R4 takes it the extra mile by ensuring that while you have aftermarket support, the manual's life is likewise prolonged.

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Source: https://gearstar.com/200-4r-vs-700r4-transmissions-comparison/