42rle Vs 42re – Who Wins the Transmission Race?

What is the major difference between 42rle and 42re transmission? According to our deep research, the 42rle is a comparatively newer and upgraded transmission than the 4re. However, there are also quite a few different factors you need to consider when choosing your vehicle.

This compression blog covers the top aspects related to 42rle vs 42re. First, you will see a comparison table consisting of highly asked data about the two types of transmission. Then, you will notice the brief explanation of the comparing facts.

Let’s start!

42rle Vs 42re- Basic Differences

Comparison Facts42rle42re
Transmission Type4 speed overdrive rear-wheel transmission4-speed rear-wheel-drive transmission
Vehicle CompatibilityCompatible with different types of jeep and truck.Suitable for old days jeep and truck.
PriceComparatively more price.Affordable price range.
Gear ratio4 gear ratio4 gear ratio
PerformanceSatisfying performanceGood performance

If you see the comparison table right above, you will know the exact differences between two highly popular suspensions. However, we will present the comparison points more precisely in the next section of this article.

Differences in Transmission Types Between 42rle and 42re

We simply can’t deny the topic of transmission type when comparing two types of transmission. The 42rle transmission comes with a 4-speed overdrive rear-wheel transmission system. Besides, you will get full electronic shift control with it. The 42rle is the updated version of the 42 le.

The 42re also has a 4-speed rear-wheel-drive transmission. Besides, it has solid hydrologic components. Therefore, there is a 0.75-inch diameter torque converter. You will also find the full electronic shift control here with this transmission.

But, you will find differences in the governor’s body in these transmissions.

Differences in Vehicle Compatibility

You should emphasize the compatibility of the transmission system that you tend to buy. Let’s talk about the 42rle automatic transmission. You can access this transmission with vehicles like Chrysler 300-300M, Dodge Charger, Liberty, Dodge Durango, Jeep JK Wrangler (2007–2013), TJ/TCL (2003–2006), RAM 1500, and many others.

On the other hand, the 42re is the most compatible with Chrysler’s 3.9L engine. Besides, the transmission is also compatible with the rear-wheel Dodge truck, Jeep Grand Cherokees (1993–1998). The 42re even suits Dodge’s vans and jeeps.

In fact, the 42re transmission usually goes with the type of trucks or vehicles that have old models.

Gear ratio Differences

If we ask about the number of gear ratios the two transmissions have, it will be 4 each. But, there are some differences in individual ratios. Let’s have a look at the table to get the point more precisely.

First, we will see the gear ratio of 42re.

First 2.74-to-1

Now, let’s look at the gear ratio for the 42rle.


Here, you can see a slight difference in the gear ratio.

Distinction Regarding Performance

Luckily, the transmission will provide you with the best performance. What you need to do is to choose the right one for your vehicle. To put it specifically, the 42rle has a modified transfer case, ensuring better driving performance and experience.

Besides, it comes with tons of features, like better electronic shift control, an exceptional modulated converter clutch, and some of the most exciting features. These features can also boost off-road performance with better control.

Similar to the 42rle automatic transmission, you will also get many beneficial features within the 42re which improve the performance. To be more specific, you will find a lock-up clutch inside the transmission. Besides, you will have a better-performing valve body and an advanced pressure regulator in 42re.

So, there’s no major difference between the two transmissions regarding performance.

42rle and 42re Price Variations

You should always look for the best transmission for your vehicle. However, if you have to spend a bit of money, it will be better to choose the best one for you.

Whatever you choose, you have to pay a comparatively smaller amount of money with the42re. You will somehow get this transmission for around $1695. On the other hand, you have to spend more in order to buy the 42rle. Here, you have to pay about $2,955. So, there’s clearly a lot of difference in the price range.

You will also see a variation in prices based on the manufacturers and the shops. Therefore, if you are concerned about the price, you can go with the rebuilt or remanufactured versions.

Frequently Asked Questions (FAQs)

How Do I Know if I Have a 42RLE Transmission?

You can simply know what type of transmission you are using by looking at the user’s manual of your vehicle. Therefore, you can also identify the type of transmission on the bar code level on the upper head area of the bell housing. You will get all the expected information about your transmission system on the label. You can also check the rear flange of the transmission case for better identification.

What Vehicles Have a 42RLE Transmission?

You will find this type of transmission system for different kinds of vehicles. However, the Jeep JK Wrangler, TJ/TCL, mostly uses the 42 RLE transmission system. This transmission is also found in the Dodge RAM, Jeep Liberty, Dodge Durango, Chrysler 300, and other vehicles. However, the model year of these vehicles is 2003-2013 or so.

How Do I Know If I Have a 42RE Transmission?

There are many ways to know whether you have a 42RE transmission. You can learn about your transmission’s information in the owner’s manual like any other transmission. First, however, you need to look for the necessary code and date on the front/driver side of the transmission. The group of codes will let you know the part, manufacture, and serial number.

Are All 42RE Transmissions the Same?

No, there are some valid differences among the 42 RE transmissions. They are different in performance, price, and type of duty. When it comes to the bell housings, there are also a few differences out there. Besides, you will get to see the differences in torque load level. The 4 and RE will remain the same here. The differences when there is a change in the number after the number 4.

Is the 42RLE a Good Transmission?

People have some confusion about the quality of the 42 RLE transmission. However, there is always some room for improvement. But, you have to make sure that you use the appropriate fluid with the transmission. You may find this transmission a bit problematic, but installing an after-market cooler will provide you with a bit of ease.

Final Thoughts

Here’s all for you about the 42re Vs 42rle transmission. So, if you are looking forward to upgrading your vehicle’s transmission, this piece of content will be helpful. Both types of transmission will provide you with the best performance, and you don’t need to take your car to the mechanic very often.

In fact, you should choose the type of transmission compatible with your vehicle. This is the first condition you need to meet before purchasing any transmission for your vehicle. If you are concerned about the price, you can go with the 42R. On the other hand, if you are OK with the asking price of 42 rle, it will be an excellent choice to buy.

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