Alright guys, let's dive deep into the 1987 Ford Bronco II transmission. If you're the proud owner of this classic compact SUV, or perhaps you're looking to get one, understanding its transmission is super important. These rigs are known for their off-road capability and rugged charm, and a big part of that is how they handle the power from the engine to the wheels. We're talking about the heart of its drivetrain here, so stick around as we break down the specs, common issues, and how to keep your Bronco II shifting smoothly.

Understanding the 1987 Ford Bronco II Transmission Options

When the 1987 Ford Bronco II transmission was rolling off the assembly line, Ford offered a couple of key options that defined its performance. The most common setup you'll find is the C6 automatic transmission. This bad boy is a heavy-duty, cast-iron, three-speed automatic that Ford used across a ton of their trucks and SUVs for years. It's known for its bulletproof reliability and its ability to handle a significant amount of torque. For the 1987 model year, the C6 was typically paired with the 2.9L V6 engine, which was the standard powerplant for the Bronco II. This combination made for a solid, if not exactly fuel-efficient, drivetrain that was perfect for the truck's intended use – getting you places, even when the pavement ended. The C6 is a workhorse; it's not fancy with electronic controls or extra gears like modern transmissions, but what it lacks in high-tech features, it makes up for in sheer durability. Many owners of older Ford vehicles swear by the C6 because it's relatively simple to work on and can often be rebuilt to last for many more miles. If you're lucky enough to find a Bronco II with a manual transmission, it's likely the BorgWarner T-5. This five-speed manual was an option for those who preferred a more engaging driving experience or wanted to eke out a bit more fuel economy on the highway. The T-5 is a pretty common manual transmission found in many Ford performance vehicles of the era, and it's generally considered a good, reliable unit, though perhaps not quite as bomb-proof as the C6 when it comes to extreme abuse. Regardless of whether you have the C6 automatic or the T-5 manual, understanding the basics of your specific 1987 Ford Bronco II transmission is the first step to ensuring its longevity and performance. Whether you're tackling trails or just cruising, a well-maintained transmission is key to enjoying your Bronco II for years to come. So, keep an eye on fluid levels, listen for any unusual noises, and don't push it harder than it was designed for, and you'll likely have a faithful companion on your adventures.

Common Issues with the 1987 Ford Bronco II Transmission

Now, let's talk about the not-so-fun stuff: common problems that can crop up with your 1987 Ford Bronco II transmission. While both the C6 automatic and the T-5 manual are generally considered robust, no transmission is immune to age and wear, especially on vehicles that might have seen some hard use over the decades. For the C6 automatic, one of the most frequent culprits is leaking transmission fluid. These transmissions have multiple seals and gaskets, and over time, they can dry out, crack, or get damaged, leading to leaks. Low fluid levels can cause overheating, slipping, and eventually, severe internal damage. So, regularly checking your transmission fluid level and condition is absolutely critical. Another issue you might encounter is slipping between gears. This can be caused by low fluid, worn clutches or bands inside the transmission, or problems with the valve body. If you notice your Bronco II hesitates or seems to 'miss' a gear, it's a serious sign that needs immediate attention. Harsh shifting or delayed engagement when you put it into Drive or Reverse can also indicate internal problems, like a failing servo or issues with the torque converter. On the manual T-5 transmission side, common gripes often involve difficulty shifting into gear, especially first and reverse. This could be due to a worn clutch, a faulty clutch hydraulic system (master or slave cylinder), or internal wear within the transmission itself. Grinding noises when shifting are a classic sign of synchronizer wear. Some owners also report issues with third gear being weak or prone to failure, particularly if the transmission has been subjected to abuse or high-performance modifications. Regardless of the transmission type, noise is always a red flag. Whining, clunking, or humming sounds that change with engine speed or gear selection are often indicators of bearing failure, gear damage, or low fluid levels. It's also important to consider the vehicle's history. If your Bronco II has been used for towing heavy loads, off-roading, or has high mileage without a rebuild, the transmission is under more stress. Regular maintenance, including fluid and filter changes (for automatics), is your best defense against many of these potential headaches. Ignoring small problems can quickly escalate into major, expensive repairs, so pay attention to how your 1987 Ford Bronco II transmission feels and sounds.

Maintenance and Repair Tips for Your Bronco II Transmission

Keeping your 1987 Ford Bronco II transmission in top shape boils down to two main things: regular maintenance and knowing when to seek professional help. Let's start with maintenance, guys. For the C6 automatic, the single most important thing you can do is regularly check and change the transmission fluid and filter. Your owner's manual (or a good service manual for your Bronco II) will give you a recommended interval, but generally, every 20,000-30,000 miles is a good ballpark for a transmission that sees regular use. Use the correct type of ATF (Automatic Transmission Fluid) specified by Ford – don't just grab any old fluid off the shelf! When you change the fluid, it's also a good idea to replace the filter and pan gasket. Dropping the pan allows you to inspect for metal shavings, which can be an indicator of internal wear. If you see a lot of fine, glittery material, it's probably normal wear; if you see chunks of metal, that's a serious warning sign. For the T-5 manual transmission, the maintenance is a bit simpler. You'll want to change the gear oil periodically. Again, consult a service manual for the correct type of gear oil and the recommended interval, but typically, every 30,000-50,000 miles is a reasonable range. Make sure you're using a fluid that's compatible with the synchronizers in the T-5. Beyond fluid changes, inspecting for leaks is crucial for both transmission types. Keep an eye on the seals around the shifter (for manuals) and the driveshaft connections, as well as the pan gasket and cooler lines (for automatics). A small leak can quickly become a big problem if left unaddressed. Listen for unusual noises – any whining, clunking, or grinding should be investigated promptly. Don't ignore symptoms like slipping, harsh shifting, or difficulty engaging gears. When it comes to repairs, the C6 is known for its simplicity and robustness. Many common issues, like leaks or even a complete rebuild, can be tackled by a competent mechanic or even a dedicated DIYer with the right tools and a good service manual. However, complex internal failures might require a specialized transmission shop. The T-5 manual transmission is also relatively straightforward, but clutch issues, synchronizer problems, or bearing failures might necessitate a rebuild or replacement. If you're not comfortable pulling a transmission or rebuilding one, it's always best to take it to a reputable shop. Finding parts for a 1987 Bronco II transmission might require some effort, as it's an older vehicle. You might need to look at specialized classic Ford parts suppliers, online forums, or even salvage yards for components. Rebuilt transmissions are also an option, often coming with a warranty. The key takeaway is proactive maintenance and prompt attention to any warning signs. By taking care of your 1987 Ford Bronco II transmission, you're investing in the longevity and enjoyment of your classic ride.

Finding Parts and Resources for Your Bronco II Transmission

So, you've got a 1987 Ford Bronco II transmission that needs some TLC, or maybe you're just looking to do some preventative maintenance. The next logical step is figuring out where to source parts and reliable information. Finding parts for a vehicle that's been out of production for quite some time can be a bit of a treasure hunt, but don't despair! The Bronco II community is pretty strong, and there are several avenues you can explore. First off, specialty Ford parts retailers are often your best bet for new or remanufactured components. Websites dedicated to classic Ford trucks and SUVs often carry a range of transmission parts, from seals and gaskets to complete rebuild kits. These places understand the nuances of older vehicles and can often help you find the exact part you need for your C6 automatic or T-5 manual. Online marketplaces like eBay can also be a goldmine, but you need to be savvy. You might find individuals selling used parts, new-old-stock (NOS) items, or even complete transmissions. Always check seller ratings, read descriptions carefully, and ask questions before you buy, especially for used components. Ford Bronco II enthusiast forums and online communities are invaluable resources. Guys who have been working on these trucks for years are often willing to share their knowledge, recommend parts suppliers, and even sell off spare parts they might have lying around. Don't be shy about posting questions – you'll likely get helpful responses. When it comes to internal transmission components like clutch packs, torque converters, or synchronizer rings, buying rebuilt or remanufactured units can often be more cost-effective and reliable than trying to piece together a transmission from individual new parts, especially if you're facing a major failure. Many reputable transmission shops offer rebuilt C6 and T-5 units with warranties, which can provide peace of mind. Service manuals are an absolute must-have for any DIY repairs. Look for a factory Ford service manual or a reputable aftermarket manual (like Haynes or Chilton) specifically for the 1987 Ford Bronco II. These manuals provide detailed diagrams, step-by-step instructions, and torque specifications that are crucial for getting the job done right. If you're facing a complex repair or rebuild, consider reaching out to a specialized transmission shop that has experience with older Ford transmissions. They'll have the expertise and specialized tools needed to diagnose and fix tricky issues. While finding parts might take a bit more effort than for a brand-new car, the resources are out there. The key is persistence and leveraging the collective knowledge of the Bronco II community. A well-maintained 1987 Ford Bronco II transmission is key to keeping your classic SUV running strong on and off the road.

Performance and Upgrades for Your Bronco II Transmission

While the stock 1987 Ford Bronco II transmission – typically the C6 automatic or the T-5 manual – was designed for reliability and everyday use, many enthusiasts look for ways to enhance its performance or adapt it for more demanding applications. Let's talk upgrades, guys! For the C6 automatic, it's already a pretty stout unit, so major upgrades often focus on strengthening it for heavier use, like towing or off-roading. This usually involves a performance rebuild. A good transmission shop can install heavy-duty clutch packs, upgraded servo pistons, and improved valve body modifications to provide firmer shifts and better durability under stress. Some tuners might even add a transmission cooler to combat overheating during strenuous activity, which is always a smart move for any automatic, especially one being pushed hard. While the C6 is a three-speed, there aren't really 'gear ratio' upgrades in the traditional sense like you might find with aftermarket overdrives, but its inherent strength is the main focus. Now, for the T-5 manual transmission, there are more options for performance enhancement. Upgraded clutch kits are a popular first step for manual transmission performance. A higher-stall clutch can handle more torque and provide a more positive engagement. For those looking to modify their engine for more power, upgrading the T-5 itself might be necessary. While the standard T-5 is decent, some versions are known to be weaker than others, particularly in handling extreme horsepower and torque. Performance rebuilds can involve replacing weaker components with stronger ones, sometimes sourced from other Ford transmission variants or aftermarket suppliers. For serious power applications, some might even consider swapping in a heavier-duty transmission like a ZF 5-speed manual, though this is a more involved conversion. Another performance aspect for both transmission types is gear ratio changes. While this isn't strictly a transmission upgrade, changing your differential gear ratios can significantly impact how your transmission performs. Lower (numerically higher) gears like 4.10s or 4.56s will give your Bronco II better acceleration and make it easier to turn larger off-road tires, effectively reducing the strain on the transmission during low-speed crawling. Conversely, higher gears (numerically lower) will improve highway cruising for better fuel economy. So, when you're thinking about performance, consider the entire drivetrain. Proper fluid and maintenance are paramount, even with performance upgrades. Using the correct, high-quality fluids and sticking to a regular maintenance schedule will ensure your upgraded 1987 Ford Bronco II transmission holds up to the increased demands. If you're planning significant power increases or aggressive off-road use, consulting with a reputable transmission builder or a knowledgeable Bronco II specialist is highly recommended. They can guide you on the best path forward, whether it's a specific rebuild, a clutch upgrade, or even a complete transmission swap, ensuring your rig is ready for whatever you throw at it. Enjoy the ride, and keep that transmission shifting smoothly!