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  3. JEEP 412-00149B

JEEP 412-00149B Transfer Cj Spicer 1349676

fits make: Jeep. year: 1979–2020.

412-00149b Jeep Transfer Case Fits 79 Cj-series Spicer 20 4 Speed 1349676

( Part Type: Transfer Case ), ( Conditions Options: 4x4, Mt ), ( Genuine Oem: Yes ), ( Ipn: 412-00149b )

Review JEEP Transfer Case Fits Cj series Spicer Speed fits 1979–2020

The Jeep 412-00149B Transfer Case is a crucial component of the drivetrain system for CJ-series Jeep models produced between 1976 and 1986. This transfer case, manufactured by Spicer, ensures smooth power transmission from the transmission to the front and rear axles, enabling four-wheel-drive capability.

The Jeep 412-00149B Transfer Case is a two-speed unit. It features two distinct gearing ranges: 1.94:1 for low range and 1.00:1 for high range. The low range provides improved torque and traction, making it an ideal choice for off-road conditions or steep inclines. In contrast, the high range offers a more direct power transfer, which is suitable for highway driving and higher speeds.

The transfer case housing is robustly built, with a durable cast iron construction that effectively dissipates heat and resists wear and tear. The internal gearing system is composed of high-strength steel, ensuring efficient power transfer and long-lasting performance. The gears in the transfer case are lubricated by a sealed gear case filled with synthetic gear oil, which provides excellent lubrication and cooling properties.

A vital feature of the Jeep 412-00149B Transfer Case is its ability to accommodate different vehicle configurations, including solid front and rear axles, and various driveline setups. This versatility makes it an excellent choice for various Jeep CJ models and custom builds.

The transfer case comes with a shift lever assembly and a speedometer cable, allowing for easy installation and integration with the vehicle's drivetrain system. Moreover, it is compatible with various transmission types, including the New Process 203, T-144, and T-18 transmissions.

In conclusion, the Jeep 412-00149B Transfer Case is an essential component for any CJ-series Jeep. Its robust construction, versatile functionality, and efficient power transfer make it a reliable and high-performing addition to your Jeep's drivetrain system. Whether you're tackling off-road trails or cruising on the highway, this transfer case is designed to deliver dependable four-wheel-drive performance.

The Spicer 20 transfer case (model 412-00149B) is a popular choice for those restoring or upgrading a CJ-series Jeep. Here are some pros and cons that may help you make an informed decision:

Pros:

1. Durability: The Spicer 20 transfer case is known for its robustness and durability, making it a popular choice for off-road enthusiasts who demand a reliable component for their Jeep.

2. Versatility: It is compatible with various CJ-series Jeep models, making it a versatile option for those with different vehicle types.

3. Availability: The Spicer 20 transfer case is widely available from various auto parts retailers, both in-store and online, making it easy to find and purchase.

4. Affordability: Compared to some other transfer cases, the Spicer 20 is relatively affordable, making it an attractive option for those on a budget.

Cons:

1. Manual Operation: The Spicer 20 transfer case is a manual unit, meaning it requires the use of a shift lever to engage or disengage the four-wheel-drive system. Some may prefer an automatic transfer case for convenience.

2. Shifting Difficulty: Some users have reported that shifting between 2WD and 4WD modes can be challenging, especially when using the transfer case in extreme conditions.

3. Noise: Some owners have noted that the Spicer 20 transfer case can be quite noisy, particularly when shifting between gears.

4. Maintenance: Like any mechanical component, the Spicer 20 transfer case requires regular maintenance to ensure optimal performance and longevity.

Conclusion:

The Spicer 20 transfer case (model 412-00149B) offers a robust and durable solution for those looking to upgrade their CJ-series Jeep's four-wheel-drive system. Its affordability and availability make it an attractive option for many, but potential buyers should be aware of its manual operation and potential noise and shifting difficulties. Ultimately, the decision to purchase the Spicer 20 transfer case depends on your individual needs, preferences, and budget.

Recommendation:

If you are looking for a durable, affordable, and widely available transfer case for your CJ-series Jeep, the Spicer 20 transfer case (model 412-00149B) is a solid choice. However, consider your personal requirements, such as your preference for manual or automatic shifting, your tolerance for noise, and your willingness to perform regular maintenance. If these factors are major concerns, you may want to explore other transfer case options before making a final decision.

Details:

Inspect yokes and axle shafts ends that go into the transmission for damage or wear. Ensure all systems are operating properly prior to the component. Use the correct factory recommend fluids and refill to recommended levels. Inspect Pilot Shaft bushing/bearing.

Reprogramming or relearning procedures are part of many OEM repair processes; this must be considered before a is defective. Inspect mounts for damage or wear. Flush components when necessary. Inspect Drive Shafts for damage and verify u-joints move freely #1 cause of cracked cases is bad or.

Some transmission and transfer cases share fluids make sure contaminated fluid is not passed between components. Inspect flywheel for cracks. Unbalanced drive shafts. Warranty covers only the gears, axles and bearings within component purchased, all other external components attached to assembly should be inspected replaced as needed.

Check and compare electrical components prior to installation. Inspect Clutch Master and Slave Cylinder. This Drive Train comes with the Standard 30 Day Warranty. This is a list of the most common problems that cause component failures.

This is a part only warranty. Inspect Clutch and Pressure Plate for damage or wear. CJ-SERIES 79 MT Spicer 20, 4 speed. Tire Sizes verify tire size and tread depth is the same front to rear right left.

Seals Inspect and replace all external seals gaskets Input seals, drive line pan gaskets, etc. Check Factory Installation Procedures for reprogramming or relearning processes. Drive Train Components include: Manual Transmissions, Transfer Cases, Carrier Assemblies, Front and Rear Axle Assemblies. No expedited shipping is available.

specifications manutransmission:

  • for makes: Jeep
  • for years: 1979-2020
  • part type: Transfer Case
  • conditions options: 4x4, Mt
  • genuine oem: Yes
  • ipn: 412-00149b

shipping manutransmission:

  • carrier: FedEx
  • type: Calculated
  • transit: 3-5 Days
  • class: Standard
  • cost: $221.13
  • service: FedEx Ground / FedEx Home Delivery

returns manutransmission:

  • time: 30 Days
  • paid by: Buyer
  • policy: Returns Accepted

seller manutransmission:

  • # reviews: 8065
  • city: Denmark, Wisconsin
  • rating: 98.5%

general manutransmission:

  • condition: Used
  • Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission Parts

offer manutransmission:

  • options: Ship-to-home
  • quantity: 1
  • sold: 0
  • availability: In Stock
  • started: September 12, 2025

payments manutransmission:

  • other
  • wallet: Apple-pay
  • credit card: Visa
for makes: jeep, for years: 1979-2020, part type: transfer case, conditions options: 4x4, mt, genuine oem: yes,
manufacturer: jeep, category: auto parts > car truck parts accessories > transmission drivetrain > automatic transmission parts, sku: 8035778185077623,

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