Understanding the Dana 20 Transfer Case Shift Pattern: A Guide

The Dana 20 Transfer Case Shift Pattern is 2WD-4H-4L with a front output shaft.

Dana 20 Transfer Case Shift Pattern

The Dana 20 Transfer Case is a four-speed, chain-driven transfer case used in many 44 vehicles, including Jeeps and Ford trucks, to transfer power from the engine to all four wheels for off-roading. Its shift patternthe sequence of positions that control the power flowis designed for the most efficient operation of the vehicle. The shift pattern is relatively straightforward and allows the driver to engage 2HI, 4HI, Neutral, and 4LO when driving a Dana 20 Transfer Case vehicle. 2HI powers two of the four wheels while 4HI powers all four wheels; Neutral disengages the power flow between the engine and transmission; and 4LO produces lower speeds with greater torque for tough off-road situations. Because of its unique shift pattern, mastering the Dana 20 Transfer Case requires some practice and knowledge of how each position functions in order to get the most out of your 44 experience.

Dana 20 Transfer Case Shift Pattern

The Dana 20 Transfer Case is a two speed transfer case found in Ford and Jeep vehicles. It was used from the mid-1960s to the late 1980s and is still in use today in select applications. This transfer case is known for its robustness, durability, and its ability to handle a variety of terrain and weather conditions.

Advantages

The Dana 20 transfer case offers some advantages over other transfer cases. One advantage is that it has the ability to shift into 4WD low range even while moving, which makes it easy to transition from 2WD to 4WD on the fly. Additionally, the Dana 20 has an extra gear ratio of 2.03:1, which allows for lower engine RPMs when driving at highway speeds, improving fuel economy. Furthermore, this transfer case features a higher torque capacity than other transfer cases due to its larger output shaft diameter. This makes it ideal for use in larger vehicles such as trucks and SUV’s that require more power for off-roading or hauling heavy loads.

Disadvantages

One disadvantage of the Dana 20 transfer case is that it does not feature an overdrive gear like some other transfer cases do. This means that when driving at highway speeds, the engine RPMs can be higher than desired resulting in decreased fuel economy. Additionally, this transfer case does not feature an automatic shifting mechanism like some newer models do, so manual shifting between 2WD and 4WD is required when changing terrain or conditions.

Shift Pattern for Manual Shifting

The shift pattern for manual shifting on the Dana 20 Transfer Case is simple and straightforward – just move the lever from one position to the next until you reach your desired gear ratio setting (high or low). The shift pattern goes as follows: Neutral Low High Neutral High Low Neutral. To engage 4WD low range, move the lever all the way up until it reaches its highest point then back down once more into low range before releasing it back into neutral position.

Shift Pattern for Automatic Shifting

For vehicles equipped with an automatic shifting system on their Dana 20 Transfer Case, there may be two different shift patterns depending on manufacturer specifications (check your owners manual). Generally speaking however, there are three main positions – Low Range (4WD), High Range (4WD), and Neutral – with a fourth option of Overdrive (which may or may not be available depending on model/year). Moving up or down through each position will engage either 2WD or 4WD depending on terrain/conditions; however Overdrive can only be engaged when in neutral position and must be manually shifted into high range before being able to engage 4wd again after using Overdrive mode.

Location of Shift Linkage

The location of the shift linkage depends on whether you have a manual or automatic transmission in your vehicle; if you have an automatic transmission then usually there will be a shifter lever located inside your vehicle near the steering wheel (check your owners manual for exact location). If you have a manual transmission then usually there will be a linkage connected directly to your transmission which must be moved in order to change gears – check your owners manual for exact location of this linkage as well as how to properly operate it if needed!

How to Operate The Shift Lever

To operate the Dana 20 Transfer Case shift lever manually simply move it up or down until you reach your desired gear ratio setting (high/low). Make sure all four wheel drive components are engaged before attempting any shifts and always remember that when transitioning from 2 wheel drive to four wheel drive you should move slowly and smoothly through each gear until you reach neutral before engaging 4wd again after using overdrive mode if necessary!

Position Of The Transfer Case In Neutral

When driving with your Dana 20 Transfer Case in neutral position either manually or automatically shifted you should always make sure that both front axle hubs are locked into place by either locking them physically by hand or engaging them electronically via switch/button inside vehicle cabin – failure to do so could result in excessive wear & tear on components due lack of drivetrain connection between front & rear axles! When parked make sure that both hubs are locked into their parking gear position as well as making sure that all four wheel drive components are disengaged; this will ensure optimal performance & longevity out of your vehicle!

Selector Settings for Uphill Driving

When driving uphill, it is important to select the correct transfer case shift pattern in order to maximize the performance of your vehicle. There are two main options for shifting your Dana 20 transfer case driving with Automatic Transfer Case Shifting and driving with Manual Transfer Case Shifting.

When using Automatic Transfer Case Shifting, the driver can select the desired gear using a selector lever located on the dashboard or console. The transfer case will then automatically shift between low and high ranges, depending on the terrain and load that the vehicle is carrying. This is a great option for those who want an easy and efficient way of shifting between gears without having to manually change them.

On the other hand, Manual Transfer Case Shifting allows drivers to manually select each gear using a separate selector lever located on the side of their transfer case. This gives drivers more control over their vehicles performance as they can choose when to shift into higher or lower gears depending on terrain and load conditions. It also allows for more precise shifting than with automatic transfer case shifting which can be beneficial when navigating steep inclines or declines.

Troubleshooting Dana 20 Transfer Case Issues

If you are having trouble with your Dana 20 transfer case, there are several steps you can take to restore communication between gear and linkage. The first step is to check all wiring connections from the ECU (Engine Control Unit) as well as any fuses or relays related to the transmission system. If these are found in good condition, then it may be necessary to reset the ECU by disconnecting its power source for at least 10 minutes before reconnecting it again.

Another common issue that may arise with Dana 20 transfer cases is hard or no engagement of transmission gears as this can lead to poor performance of your vehicle when driving in different terrains. To troubleshoot this problem, it is important to inspect any linkages that may be loose or worn out and replace them if necessary. It may also be necessary to adjust shifter settings or replace worn out components such as bushings, seals, or bearings in order to restore proper transmission operation.

Maintenance Tips for Dana 20 Transfer Cases

Regular maintenance and care of your Dana 20 transfer case is important in order to ensure its peak performance over time. One key maintenance tip is regular fluid changes which should be done every 12 months or 12 000 miles (19 000 km). It is also important to check all linkages and bushings associated with your transfer case in order to ensure they are properly lubricated and functioning correctly especially after off-roading trips where these parts may take a beating from harsh terrain conditions. A cam replacement should also be done every few years in order to restore proper operation of your transfer case’s internal components such as synchronizers, bearings, seals, etc., which can become worn out over time due to regular use.

Components in Dana 20 Transfer Cases

The Dana 20 Transfer Case consists of several different components that work together in order for it to operate efficiently during different terrains and loads placed upon it. These components include Input Splines which allow power from the engine crank shafts into rotating motion within the casing; Output Splines which transmit power from inside the casing into rotating motion outside; Crawl Boxes which give drivers a better range of control when navigating difficult terrain; Synchronizers which allow smooth shifts between higher and lower gears; Bearings which reduce friction while transferring power within components; Seals that help keep oil contained within various parts; Bushings that support shafts while absorbing vibrations; Gearsets which provide power at various speeds while reducing noise levels; Chains & Sprockets used for transferring power via sprocket teeth engagement; Linkages responsible for connecting various levers together; Sensors used for monitoring speed & pressure readings within various parts; Pumps used for circulating fluid throughout components; Motors used for providing additional torque where needed; Vacuum Lines responsible for regulating vacuum pressure within some components; Valves allowing oil flow through certain points when needed; Overdrive Gears allowing higher speeds at lower RPMs during highway travels etc.. All these components must remain well maintained if you want your Dana 20 Transfer Case Shift Pattern to perform optimally over time!

FAQ & Answers

Q: What are the advantages and disadvantages of the Dana 20 Transfer Case?
A: The Dana 20 Transfer Case is a robust and reliable four-wheel drive transfer case that offers great performance and durability. Advantages of the Dana 20 include its small size, its ability to handle high torque loads, and its compatibility with many engines. Disadvantages include difficulty in shifting due to its outdated design, lack of adaptability to newer engines, and difficulty in finding replacement parts.

Q: What is the shift pattern for the Dana 20 Transfer Case?
A: The shift pattern for the Dana 20 Transfer Case can be either manual or automatic. When manually shifting, you would move the shift lever to select between 4WD High Range Gear, Neutral, Low Range Gear and Reverse Gear. When using an automatic transfer case, you would use a selector switch to choose between 2WD High Range Gear, 4WD High Range Gear, Neutral, Low Range Gear and Reverse Gear.

Q: Where is the shift linkage located for manual and automatic transfer cases?
A: For manual shifting, the shift linkage is located on top of the transfer case near the front output. For automatic shifting, it is located on one side of the transfer case near where it connects to the transmission.

Q: How do you operate the shift lever for manual and automatic transfer cases?
A: For manual shifting, push down on the shift lever firmly while simultaneously pushing in on a button located at its base until you hear a click. For automatic shifting, push down on the selector switch firmly until it clicks into place.

Q: What are some maintenance tips for Dana 20 Transfer Cases?
A: It is important to regularly change out your transfer case fluid as per your vehicles recommended service schedule in order to keep it running smoothly and efficiently. If your transfer case has been damaged or worn out over time due to excessive use or abuse then you may need to replace any worn out components such as input splines or crawl boxes as well as camshafts if applicable.

The Dana 20 Transfer Case Shift Pattern is a simple but effective design that has been used in many vehicles since the 1960s. It is a two-speed transfer case that allows for shifting between two-wheel drive and four-wheel drive, as well as neutral. Its rugged construction and ease of use makes it ideal for off-roading vehicles, and its relatively low cost of maintenance makes it an attractive option for those looking to upgrade their vehicle.