How to Fix 904 Transmission Problems?

If you drive a 904 transmission, you know that they are known for their strength and durability. However, even the strongest transmissions can have problems from time to time. If you are having trouble with your 904 transmission, there are a few things that you can do to try and fix the problem.

First, check the fluid level in the transmission. If the fluid is low, it could be causing the transmission to slip. Add fluid as needed and see if that fixes the problem.

Next, check the filters and gaskets in the transmission. If they are damaged or worn out, they could be causing leaks which can lead to slipping. Replace any damaged or worn out parts as needed.

Finally, take your car to a professional mechanic for a thorough inspection of your transmission. They will be able to diagnose and fix any problems that may be causing your transmission to slip.

If you are having 904 transmission problems, there are a few things that you can do to try and diagnose the issue. First, check the fluid level and condition. If the fluid is low or dirty, it may be causing the problem.

Next, check the transmission filter to see if it needs to be replaced. Finally, have a professional inspected your transmission to see if there are any other issues that need to be addressed.

This is one you’ll never forget… Why a Chrysler 904 vs 727 pro’s and con’s.

What Did a 904 Transmission Come In?

The 904 transmission was used in a variety of Chrysler vehicles from 1963 to 1989. It was a three-speed automatic transmission that was available with either two or four gear ratios. The 904 was used in a variety of cars, trucks and vans, including the Dodge Dart, Plymouth Fury and Chrysler New Yorker.

How Do You Tell the Difference between a 904 And 727 Transmission?

There are several ways to tell the difference between a 904 and 727 transmission. One way is by the number of bolts that hold the pan on. A 904 has 13 bolts while a 727 has only 11.

Another way is by the size of the transmission. A 904 is about 1″ longer than a 727. Finally, you can also tell by the shape of the case.

A 904 has a curved case while a 727 has a flat case.

Will a 904 Transmission Fit a 360?

A 904 transmission will not fit a 360. The two transmissions are not compatible with each other.

How Much Does a 904 Transmission Weight?

A 904 transmission weighs approximately 75 pounds.

904 Transmission Problems


Torqueflite 727 Common Problems

The Torqueflite 727 is a very popular transmission, but it’s not without its problems. Here are some of the most common issues that owners face: 1) Leaking seals: Over time, the seals in the transmission can start to leak, leading to a loss of fluid and eventually transmission failure.

If you notice your transmission fluid level dropping, have your mechanic check for leaks. 2) Worn clutches: The clutches in the 727 are subject to a lot of wear and tear and will eventually need to be replaced. This is typically a job for a professional mechanic, as it requires special tools and knowledge.

3) Shifting problems: If you’re noticing that your 727 is having trouble shifting gears, it could be due to any number of things including worn clutch packs or an incorrect shift pattern. Have your mechanic take a look to diagnose the problem. 4) Overheating: overheating is one of the most common causes of transmission failure in general, and the 727 is no exception.

If you notice your transmission temperature rising, have your car checked out by a mechanic as soon as possible.


The 904 transmission is a 4-speed automatic transmission that was used in Chrysler and Dodge vehicles. It was first introduced in the early 1960s and was used in a variety of vehicles over the years, including the Chrysler New Yorker, Imperial, and LeBaron; the Dodge Dart, Charger, Coronet, Diplomat, Magnum, and St. Regis; and the Plymouth Fury, Gran Fury, Road Runner, Satellite, and Superbird. The 904 transmission has a reputation for being reliable and durable, but it is not without its problems.

Common issues include fluid leaks, hard shifting, slipping gears, and premature wear. These problems can often be fixed with simple maintenance or repairs, but in some cases replacement may be necessary.


  • Robert Wilson

    Introducing Robert Wilson, your go-to source for automotive technical solutions. With 5 years of industry experience and a mechanical engineering background, Robert's expertise was honed at the heart of Ford Motors in Michigan back in 2010. Join him on this blog as he shares his knowledge and practical fixes to keep your vehicles running at their best. Robert Wilson

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