1987 Jeep Wrangler Transmission For Sale: Your Comprehensive Guide to Revitalizing an Icon

1987 Jeep Wrangler Transmission For Sale: Your Comprehensive Guide to Revitalizing an Icon jeeps.truckstrend.com

The 1987 Jeep Wrangler, affectionately known as the YJ, holds a special place in automotive history. As the first iteration of the now-iconic Wrangler line, it combined the rugged spirit of its CJ predecessors with modern comforts like square headlights and a wider stance. These vehicles were built for adventure, designed to conquer trails and deliver open-air freedom. However, after more than three decades of loyal service, often involving demanding off-road excursions or countless miles on the pavement, a critical component often requires attention: the transmission.

For owners of a 1987 Jeep Wrangler, finding a reliable transmission for sale isn’t just about replacing a worn-out part; it’s about preserving a piece of automotive heritage and ensuring their beloved YJ continues its legacy of adventure. This comprehensive guide will navigate the complexities of sourcing, selecting, and installing a transmission for your 1987 Jeep Wrangler, offering insights and practical advice to help you make an informed decision.

1987 Jeep Wrangler Transmission For Sale: Your Comprehensive Guide to Revitalizing an Icon

Understanding the 1987 Jeep Wrangler Transmission Landscape

Before diving into the search for a replacement, it’s crucial to understand the original transmission options offered in the 1987 YJ. The transmission in your Jeep is directly linked to the engine it came with:

• Manual Transmissions:
  • Aisin-Warner AX-5: This five-speed manual transmission was paired exclusively with the 2.5L AMC 150 (4-cylinder) engine. It’s a light-duty transmission, generally robust for its intended application, but can show wear, especially if subjected to heavy off-roading or large tires.
  • Peugeot BA-10/5: This five-speed manual was exclusively mated to the 4.2L AMC 258 (6-cylinder) engine in 1987. Often considered a weaker link in the drivetrain, the BA-10/5 is known for its relatively fragile bearings and internal components, especially under stress. Many owners eventually swap this transmission out for more robust alternatives like the AX-15 (from later YJs) or NV3550.



• Automatic Transmissions:
  • TorqueFlite TF-999: This three-speed automatic transmission was also paired with the 4.2L AMC 258 (6-cylinder) engine. Known for its simplicity and ruggedness, the TF-999 is a workhorse that can handle a lot of abuse. While durable, age and lack of maintenance can still lead to issues like slipping, delayed shifts, or outright failure.

The need for a replacement transmission typically arises from accumulated wear and tear, fluid contamination, hard use (especially off-roading), or simply the age of the components. Whether you’re looking to replace a failing unit, upgrade for better performance, or restore a project vehicle, knowing your original setup is the first step.

Identifying Your Transmission Needs

Before you start scouring listings for a "1987 Jeep Wrangler Transmission For Sale," you need to precisely identify what you have and what you need.

1. Engine Type: This is paramount. Is your YJ powered by the 2.5L 4-cylinder or the 4.2L 6-cylinder? This dictates the bell housing pattern and, therefore, which transmissions will bolt up.



2. Current Transmission: If your transmission is still in the vehicle, try to identify it. Look for tags, casting numbers, or simply compare its appearance to images online of the AX-5, BA-10/5, and TF-999. The number of bolts on the bell housing and the shape of the casing can help. For instance, the BA-10/5 often has a ribbed case and a distinctive tail shaft housing.
3. Manual vs. Automatic: Are you replacing like-for-like, or considering a swap? A manual-to-automatic or automatic-to-manual swap is possible but involves significant additional parts and labor (pedal assembly, shifter linkage, driveshafts, computer/wiring adjustments, etc.).
4. Intended Use:
   • Daily Driver/Light Use: A good condition used unit or a standard rebuilt transmission might suffice.
   • Serious Off-roading/Heavy Duty: You might consider an upgraded rebuilt unit with stronger components, or even a conversion to a more robust transmission like an AX-15 or NV3550 for 6-cylinder models.
   • Restoration: You’ll likely seek an OEM-correct unit, possibly a professionally rebuilt one, to maintain authenticity.
5. Budget: This will significantly influence your options, from a cheap used part to a fully remanufactured unit.

Where to Find a 1987 Jeep Wrangler Transmission For Sale

The market for vintage Jeep parts is robust, offering several avenues for finding a suitable transmission.

1. Used/Salvage Yards (Auto Recyclers):

   • Pros: Often the most affordable option. You might find a complete assembly, including the transfer case, at a good price. Local yards allow for physical inspection.
   • Cons: Condition is often unknown. No warranty, or a very limited one. You’re buying "as-is," which carries inherent risks.
   • Tips: Ask for the vehicle’s mileage and history if available. Inspect for leaks, cracked casings, and listen for internal noises if the vehicle is still somewhat intact. Check the fluid for signs of contamination.

2. Rebuilt/Remanufactured Transmissions:

   • Pros: Professionally disassembled, inspected, worn parts replaced (bearings, seals, synchros), and thoroughly tested. Comes with a warranty (often 1-3 years). Offers significantly better reliability than a used unit. Some rebuilders offer upgraded components for increased durability.
   • Cons: Higher cost than a used unit. Requires core charge (you send your old transmission back, or pay an upfront fee).
   • Tips: Buy from reputable suppliers specializing in Jeep or 4×4 transmissions. Check reviews and inquire about their rebuilding process and warranty details.

3. New Aftermarket Transmissions:

   • Pros: Brand new components, often with design improvements over OEM. Full warranty. Zero mileage.
   • Cons: The most expensive option. Limited availability for direct OEM replacements for 1987 models; more common for conversion kits (e.g., new AX-15 equivalents).
   • Tips: Ensure compatibility with your engine and transfer case. Verify the manufacturer’s reputation.

4. Online Marketplaces & Forums:

   • eBay, Craigslist, Facebook Marketplace: You’ll find a mix of used, rebuilt, and sometimes new units.
   • Jeep Forums & Dedicated Classifieds: Websites like JeepForum.com, WranglerForum.com, or specific YJ enthusiast groups often have "parts for sale" sections.
   • Pros: Wide selection, potential for good deals, direct communication with sellers.
   • Cons: Risk of scams, misrepresentation, or poor packaging for shipping. Can be challenging to verify condition remotely.
   • Tips: Always ask for detailed photos and videos. Get the VIN of the donor vehicle if possible. Use secure payment methods. Arrange local pickup if feasible to inspect the item personally. Be wary of prices that seem "too good to be true."

Key Considerations Before Purchase

• Condition: For used transmissions, inspect for cracks, bent shafts, excessive play in input/output shafts, and signs of overheating. Check the fluid – burnt smell or metallic flakes indicate internal damage.
• Compatibility: Double-check part numbers, bell housing bolt patterns, input shaft splines, and output shaft configurations to ensure it mates correctly with your engine and transfer case (e.g., NP207 or NP231 for 1987 YJs).
• Warranty: This is your best friend, especially for rebuilt units. Understand what it covers, for how long, and the process for claims. A written warranty is essential.
• Price vs. Value: The cheapest option isn’t always the best. A low-cost used transmission might fail quickly, costing you more in the long run. Balance upfront cost with expected longevity and reliability.
• Core Charge: If buying a rebuilt unit, factor in the core charge. Ensure your old transmission is suitable as a core return to avoid losing this deposit.
• Shipping & Logistics: Transmissions are heavy. Freight shipping can be expensive. Inquire about crating, insurance, and delivery times. Local pickup can save significant costs.

Installation Tips and Post-Installation Care

Installing a transmission is a complex job that requires specialized tools and mechanical expertise.

• Professional Installation: If you’re not an experienced mechanic, consider professional installation. It ensures proper alignment, fluid levels, and reduces the risk of immediate failure due to installation errors.
• DIY Installation: If you plan to DIY, invest in a good service manual (like Haynes or Chilton), a transmission jack, and appropriate tools. Ensure the vehicle is securely supported.
• Associated Parts: Always replace the pilot bearing/bushing (manual), throwout bearing, clutch (manual), rear main seal (engine side), and transmission mount when installing a "new" transmission. Consider replacing the transfer case input seal and output seals as well.
• Fluid: Use the correct type and amount of transmission fluid (e.g., GL-3 or GL-4 for older manuals, Dexron II/III for automatics). Never use GL-5 in older manual transmissions unless specified, as its additives can corrode brass synchros.
• Break-in Period: Follow any break-in recommendations for rebuilt units. Drive gently, avoid heavy loads or aggressive shifts for the first few hundred miles.
• Regular Maintenance: Check fluid levels regularly and change it according to the manufacturer’s recommendations or more frequently if used for heavy off-roading.

Potential Challenges and Solutions

• Finding the Exact Match: The 1987 YJ’s unique transmission pairings (especially the BA-10/5) can make finding a direct replacement challenging.
  • Solution: Be prepared to consider professional rebuilding of your existing unit if the casing is sound, or explore conversion kits to more common and robust transmissions like the AX-15 (for 6-cylinder) if you’re open to modifications.
• Unreliable Sellers: Buying online carries risks.
  • Solution: Stick to reputable companies for rebuilt units. For private sales, use platforms with buyer protection, ask for extensive proof of condition, and communicate clearly.
• Unexpected Issues During Installation: Old vehicles often hide problems.
  • Solution: Budget for additional parts (driveshaft U-joints, exhaust components, crossmember bolts) and potential shop time if you hit a snag.

Practical Advice and Actionable Insights

• Verify Everything: Before handing over money, verify the transmission’s compatibility, condition, and the seller’s reputation.
• Get it in Writing: Always ensure any warranty or guarantee is provided in writing.
• Factor in Total Cost: Remember to include shipping, core charges, and the cost of new associated parts (clutch, seals, fluid, mount) in your budget.
• Don’t Rush: Take your time to research, compare options, and find the right transmission for your specific needs and budget. A hasty decision can lead to costly regrets.

1987 Jeep Wrangler Transmission Price Guide (Estimated)

Please note these are approximate prices and can vary significantly based on condition, mileage, seller, warranty, and market demand.

Transmission Type	Condition	Engine Compatibility	Estimated Price Range (USD)	Remarks
AX-5 (Manual)	Used (Pull-out)	2.5L 4-Cylinder	$300 – $700	No warranty, condition varies greatly. Best for inspection before purchase.
	Rebuilt/Remanufactured	2.5L 4-Cylinder	$800 – $1,500	Often includes core charge. Typically 1-3 year warranty.
BA-10/5 (Manual)	Used (Pull-out)	4.2L 6-Cylinder	$200 – $500	Least desirable option; often replaced due to reliability issues.
	Rebuilt/Remanufactured	4.2L 6-Cylinder	$700 – $1,200	Less common to find rebuilt due to its reputation; consider AX-15 swap.
TF-999 (Automatic)	Used (Pull-out)	4.2L 6-Cylinder	$400 – $800	Generally robust, but check fluid and shift quality if possible.
	Rebuilt/Remanufactured	4.2L 6-Cylinder	$900 – $1,800	Good option for reliable automatic; often includes core charge.
AX-15 Conversion Kit	New/Rebuilt	4.2L 6-Cylinder	$1,500 – $2,500+	Includes transmission, adapter plate, and other necessary parts for swap.

Frequently Asked Questions (FAQ)

Q1: What transmissions came in the 1987 Jeep Wrangler (YJ)?
A1: The 1987 YJ came with the Aisin-Warner AX-5 (5-speed manual for 2.5L 4-cylinder), the Peugeot BA-10/5 (5-speed manual for 4.2L 6-cylinder), and the TorqueFlite TF-999 (3-speed automatic for 4.2L 6-cylinder).

Q2: Can I swap an automatic for a manual (or vice-versa) in my 1987 YJ?
A2: Yes, it’s possible, but it’s a significant undertaking. It requires sourcing many additional parts like the pedal assembly, master/slave cylinders, clutch, flywheel, driveshafts, shifter assembly, and potentially modifications to the floor pan and wiring.

Q3: How much does a replacement transmission for a 1987 YJ typically cost?
A3: Prices vary widely based on type and condition. Used pull-out units can range from $200-$800, while professionally rebuilt or remanufactured units typically cost $700-$1,800, often with a core charge. Conversion kits to more modern transmissions can exceed $1,500.

Q4: Should I buy a used or a rebuilt transmission for my 1987 YJ?
A4: For reliability and peace of mind, a professionally rebuilt transmission is generally the superior choice, as it comes with a warranty and has had worn components replaced. A used transmission is cheaper but carries a higher risk of failure due to unknown history and internal wear.

Q5: What should I look for when inspecting a used 1987 Jeep Wrangler transmission?
A5: Look for external cracks or damage to the casing, excessive rust, and evidence of fluid leaks. Check the fluid color and smell (burnt fluid is bad) and look for metallic flakes. For manual transmissions, check input and output shaft play; for automatics, ensure the torque converter studs are intact.

Conclusion

Finding a "1987 Jeep Wrangler Transmission For Sale" is more than just a transaction; it’s an investment in keeping a classic alive. Whether you opt for a budget-friendly used unit, a reliable rebuilt option, or embark on a full conversion, understanding the nuances of your YJ’s drivetrain is paramount. By taking the time to research, verify, and consider all factors, you can ensure your beloved 1987 Jeep Wrangler receives the transmission it needs to continue its journey, conquering new horizons for years to come. Your YJ deserves nothing less than the best to keep its adventurous spirit thriving.