1987 Jeep Wrangler Transmission For Sale: A Comprehensive Buyer’s Guide

1987 Jeep Wrangler Transmission For Sale: A Comprehensive Buyer’s Guide jeeps.truckstrend.com

The 1987 Jeep Wrangler YJ holds a special place in the hearts of off-road enthusiasts and classic vehicle collectors alike. As the inaugural year for the iconic Wrangler nameplate, the ’87 model brought a new era of open-air adventure and rugged capability. However, like any vehicle approaching four decades of service, components can wear out, and for many Jeep owners, the transmission becomes a primary concern. Whether you’re undertaking a full restoration, repairing a daily driver, or upgrading for enhanced performance, finding a "1987 Jeep Wrangler transmission for sale" is a common quest. This comprehensive guide will navigate the complexities of sourcing, selecting, and installing the right transmission for your vintage YJ, ensuring your beloved Jeep continues to conquer trails and turn heads for years to come.

The Heart of the Beast: Understanding 1987 Jeep Wrangler Transmissions

1987 Jeep Wrangler Transmission For Sale: A Comprehensive Buyer’s Guide

To effectively search for a transmission, it’s crucial to understand the original equipment options available in the 1987 Jeep Wrangler YJ. Jeep offered both manual and automatic transmissions, each paired with specific engine configurations:

Manual Transmissions:

1. Peugeot BA-10/5 (5-speed manual): This transmission was primarily mated to the 4.2L (258 cubic inch) AMC I6 engine. Characterized by its aluminum case and external slave cylinder, the BA-10/5 gained a reputation for being somewhat fragile, particularly under heavy use or with larger tires. Many owners eventually swap this unit out for more robust alternatives.
2. Aisin-Warner AX-5 (5-speed manual): Found in Wranglers equipped with the 2.5L (150 cubic inch) AMC I4 engine. The AX-5 is a lighter-duty transmission, well-suited for the 4-cylinder’s power output. It is generally considered more reliable than the BA-10/5 for its intended application.

Automatic Transmissions:

1. Chrysler Torqueflite 999 (TF999): Paired with the 4.2L AMC I6 engine, the TF999 is a robust 3-speed automatic transmission. Known for its durability and simplicity, it’s a popular choice for those seeking a low-maintenance, reliable automatic.
2. Chrysler Torqueflite 904 (TF904): Mated to the 2.5L AMC I4 engine, the TF904 is a slightly smaller and lighter version of the TF999, designed for the 4-cylinder’s power. It shares the TF999’s reputation for reliability.

Understanding which transmission originally came with your Jeep’s engine is the first step in finding a suitable replacement or planning an upgrade.

Why You Might Be Searching for a Replacement

Several factors drive the need for a new or used transmission for a 1987 Jeep Wrangler:

• Age and Wear: After 37 years, internal components like bearings, synchronizers, and gears can simply wear out, leading to grinding, difficulty shifting, or complete failure.
• Common Failure Points: The Peugeot BA-10/5, in particular, is notorious for premature wear, especially when subjected to aggressive off-roading, oversized tires, or higher horsepower engines. Many owners proactively replace it before it fails.
• Off-Roading Stress: The rugged nature of Jeep ownership often involves heavy loads, steep inclines, and extreme articulation, all of which put immense stress on the drivetrain.
• Performance Upgrades: Swapping to a more robust transmission (like the Aisin-Warner AX-15, a common upgrade for 6-cylinder YJs) is a popular modification for owners looking to increase durability or accommodate engine swaps.
• Accident Damage: In some cases, an accident might damage the transmission casing or internal components beyond repair.

Where to Find a 1987 Jeep Wrangler Transmission For Sale

Sourcing a transmission for a vintage vehicle requires a bit of detective work and an understanding of the various avenues available:

1. New Old Stock (NOS): Extremely rare and often very expensive, NOS transmissions are brand-new units that were never sold or installed. They are typically found through specialized vintage parts dealers or in very limited supply.
2. Remanufactured/Rebuilt Transmissions: This is often the most reliable option. Reputable companies take an old transmission core, disassemble it, replace all worn parts (bearings, seals, synchronizers, sometimes gears), and reassemble it to factory specifications. These typically come with a warranty.
3. Used Transmissions (Salvage Yards/Online Marketplaces):
   • Local Salvage Yards: "Junk yards" can be treasure troves, but the condition of used transmissions can be highly variable. Inspection is crucial.
   • Online Marketplaces (eBay, Craigslist, Facebook Marketplace): Offers a wide selection, but requires careful vetting of sellers and often relies on pictures and descriptions. "Buyer beware" applies here.
   • Specialized Jeep Forums & Classifieds: Enthusiast communities often have members selling parts from their projects or parts Jeeps. These can be good sources for knowing the history of the part.
4. Specialty Jeep Parts Dealers: Several companies specialize in aftermarket and replacement parts for older Jeeps. They often offer rebuilt transmissions or complete swap kits.

Important Considerations Before You Buy

Before pulling the trigger on a transmission purchase, take these critical factors into account:

• Compatibility:
  • Engine Type: Ensure the transmission is designed for your specific engine (2.5L I4 or 4.2L I6). Bellhousing bolt patterns differ.
  • Transfer Case: The transmission must bolt up correctly to your transfer case (likely an NP207 or NP231 in an ’87 YJ). Input/output shafts and spline counts need to match.
  • 2WD vs. 4WD: Nearly all Wrangler transmissions are 4WD, but always confirm.
• Condition and Warranty:
  • Remanufactured: Look for a reputable rebuilder offering a substantial warranty (e.g., 1-3 years). Understand what the warranty covers.
  • Used: Ask for detailed photos, mileage (if known), and any history of the donor vehicle. Check for fluid leaks, broken mounts, or damaged sensors. A used transmission is always a gamble unless you can inspect it thoroughly and test it.
• Cost vs. Value: A cheap used transmission might end up costing more in repairs or re-replacement down the line. Balance initial cost with long-term reliability.
• Installation Complexity: Swapping like-for-like (e.g., BA-10/5 for another BA-10/5) is generally straightforward. Swapping to a different transmission type (e.g., BA-10/5 to AX-15) involves more modifications (bellhousing, driveshafts, crossmember, shifter, possibly transfer case input).
• Ancillary Parts: A transmission replacement often requires new components such as:
  • Clutch kit (for manuals: pressure plate, clutch disc, throwout bearing, pilot bushing)
  • Flywheel inspection/resurfacing/replacement
  • Transmission mount
  • New fluid and filter (for automatics)
  • Seals and gaskets
  • Driveshaft U-joints or even new driveshafts (for swaps)
  • Shifter assembly (for swaps)

Tips for a Successful Purchase and Installation

1. Do Your Research: Understand the specific transmission codes and part numbers for your ’87 YJ. Join Jeep forums; the community knowledge is invaluable.
2. Ask Detailed Questions: Don’t hesitate to ask sellers about the transmission’s history, any known issues, and what exactly is included in the sale. For rebuilders, inquire about their rebuilding process and warranty details.
3. Inspect Thoroughly (If Possible): For used transmissions, look for clean fluid, intact bellhousing, solid input/output shafts (no excessive play), and no visible cracks or damage to the casing.
4. Budget Beyond the Transmission: Account for shipping costs (transmissions are heavy!), ancillary parts, and potential labor costs if you’re not doing the installation yourself.
5. Consider a Professional: If you’re not experienced with drivetrain work, professional installation by a reputable mechanic specializing in Jeeps or off-road vehicles is highly recommended. It ensures correct installation and can save you headaches and costly mistakes down the road.
6. Upgrade Wisely: If you’re replacing a problematic BA-10/5, seriously consider the AX-15 swap. While it involves more upfront work and cost, the long-term reliability and peace of mind are often worth it.

Potential Challenges and Solutions

• Scarcity of Specific Units: Finding an exact match for an uncommon original transmission in good condition can be challenging.
  • Solution: Broaden your search to reputable rebuilders or consider a popular swap like the AX-15.
• Finding Reliable Sellers: Especially with used parts, it’s hard to verify claims.
  • Solution: Stick to sellers with good reviews, ask for videos of the unit running (if applicable), or buy from known enthusiast groups. Use payment methods that offer buyer protection.
• High Shipping Costs: Transmissions are heavy, leading to expensive freight shipping.
  • Solution: Factor shipping into your budget. Look for local pickups if possible.
• Installation Difficulties/Compatibility Issues: Swaps can be complex, requiring modifications to crossmembers, driveshafts, and wiring.
  • Solution: Purchase complete swap kits from reputable vendors, consult detailed online guides/videos, or hire an experienced mechanic.

1987 Jeep Wrangler Transmission Estimated Price Guide

Please note: Prices are estimates and can vary significantly based on condition, seller, location, and market demand. Always confirm with the seller.

Transmission Type	Condition	Estimated Price Range (USD)	Notes
Peugeot BA-10/5	Used (Pull-out)	$200 – $600	High variability in condition; often sold "as-is." Expect potential issues.
(5-speed Manual)	Remanufactured	$1,000 – $1,600	Includes core charge; often comes with a warranty. Best option if sticking with original.
Aisin-Warner AX-5	Used (Pull-out)	$300 – $800	Generally more reliable used than BA-10/5.
(5-speed Manual)	Remanufactured	$1,100 – $1,700	Includes core charge; good option for 4-cylinder Jeeps.
Aisin-Warner AX-15	Used (Pull-out)	$400 – $1,000	Popular swap for BA-10/5; often requires additional swap components (bellhousing, clutch, driveshafts, etc.).
(5-speed Manual)	Remanufactured	$1,200 – $2,000	Excellent reliability; often purchased as part of a complete swap kit.
Chrysler TF999	Used (Pull-out)	$300 – $700	Durable automatic; condition varies.
(3-speed Automatic)	Remanufactured	$1,200 – $1,800	Includes core charge; reliable automatic for I6.
Chrysler TF904	Used (Pull-out)	$250 – $600	Good automatic for I4; condition varies.
(3-speed Automatic)	Remanufactured	$1,100 – $1,700	Includes core charge; reliable automatic for I4.
Complete Swap Kit	(e.g., BA-10/5	$2,000 – $3,500+	Typically includes remanufactured AX-15, bellhousing, clutch, hydraulic slave, possibly transfer case input/driveshafts. Price highly dependent on components.
(AX-15 Conversion)	to AX-15)

Note: These prices do not include shipping costs, which can be significant for heavy components like transmissions. Installation labor costs (if hiring a professional) are also separate and can range from $500 – $1500+ depending on the shop and complexity of the job.

Frequently Asked Questions (FAQ)

Q1: What transmissions originally came in the 1987 Jeep Wrangler?
A1: For the 4.2L I6 engine, it was typically the Peugeot BA-10/5 5-speed manual or the Chrysler Torqueflite 999 3-speed automatic. For the 2.5L I4 engine, it was the Aisin-Warner AX-5 5-speed manual or the Chrysler Torqueflite 904 3-speed automatic.

Q2: Can I swap a different transmission into my 1987 Wrangler?
A2: Yes, the most common manual swap for the 4.2L I6 is replacing the problematic BA-10/5 with an Aisin-Warner AX-15 (from later YJs or XJs). Automatic swaps are also possible but less common unless part of an engine swap.

Q3: What’s the difference between a BA-10/5 and an AX-15?
A3: The BA-10/5 is a lighter-duty Peugeot-sourced manual transmission known for its fragility, especially with the I6 engine. The AX-15 is a much stronger and more reliable Aisin-Warner transmission that Jeep started using in 1989 for the I6. The AX-15 swap is highly recommended for BA-10/5 owners.

Q4: Should I buy a used or a rebuilt transmission?
A4: A rebuilt (remanufactured) transmission from a reputable company is generally the safest bet as it comes with a warranty and has had all wear items replaced. A used transmission is cheaper but carries a higher risk of hidden problems and typically comes without a warranty.

Q5: What else do I need when replacing a transmission?
A5: For manuals, plan on a new clutch kit (disc, pressure plate, throwout bearing, pilot bushing), new transmission mount, and fresh fluid. For automatics, new fluid, filter, and pan gasket. For any swap, you might need a new bellhousing, driveshafts, crossmember modifications, and possibly a different transfer case input shaft.

Q6: How much does professional installation cost?
A6: Installation costs can vary widely, but typically range from $500 to $1500+ depending on the shop’s labor rate, the complexity of the job (simple replacement vs. a full swap), and any unforeseen issues. Always get a detailed quote.

Conclusion

Finding a "1987 Jeep Wrangler transmission for sale" is more than just a transaction; it’s an investment in the continued life and legacy of a classic American icon. By understanding the types of transmissions available, carefully considering your options (new, rebuilt, or used), and preparing for the associated costs and complexities, you can make an informed decision that ensures your YJ remains a capable and enjoyable vehicle. Whether you opt for a direct replacement or a robust upgrade, a well-chosen and properly installed transmission will keep your 1987 Jeep Wrangler roaring down the highway and conquering trails for many more adventures to come.