Looking for a Mitsubishi gearbox for sale can be a bit of a headache, right? Whether you’ve got an older model that needs some love or you’re building a beast of a performance car, finding the right transmission is key. You’ve got choices, from brand new units to ones that have been someone else’s before, or even ones that have been totally rebuilt. Let’s break down what’s out there so you can get your Mitsubishi running smoothly again.
Key Takeaways
- When you’re hunting for a Mitsubishi gearbox for sale, you’ll find new, used, and reconditioned options. Each has its own pros and cons depending on your budget and needs.
- For Mitsubishi Evolution owners, there are specific upgrades available, like stronger 5-speed gearboxes and custom gear ratios for better performance.
- A rebuilt Mitsubishi gearbox often includes upgraded parts like better synchros and bearings, plus stronger shafts and gears for more durability.
- Make sure you know if you need a 2WD or 4WD gearbox, and whether you want a manual or automatic. Checking the gearbox code is important for a correct fit.
- Buying a gearbox usually involves a surcharge for your old unit, and you’ll need to sort out shipping and understand the warranty offered.
Finding Your Mitsubishi Gearbox For Sale
So, you’re on the hunt for a new gearbox for your Mitsubishi. It can feel like a bit of a maze, right? You’ve got a few main paths to consider: brand new, someone else’s used one, or a reconditioned unit. Each has its own set of pros and cons, and what’s best really depends on your budget and what you’re planning to do with your car.
New Mitsubishi Gearbox Options
Going for a brand new gearbox is like getting a fresh start. It’s the most straightforward option, usually coming with a full warranty and the peace of mind that nothing’s been worn down. These are typically sourced directly from manufacturers or authorized dealers. While they offer the highest reliability and performance straight out of the box, they also come with the highest price tag. If you’re building a show car or just want zero worries, this might be your route. You’re getting a part that’s built to factory specs, ready to go.
Used Mitsubishi Gearbox For Sale
Buying a used gearbox can save you a significant chunk of change. It’s a popular choice for budget-conscious owners or those needing a quick replacement. The trick here is finding a reputable seller and doing your homework. You’ll want to know the mileage, the car’s history, and ideally, get some sort of guarantee, even if it’s short. Sometimes you can find great deals on used units, but there’s always a bit of a gamble involved. It’s a bit like buying a used phone – you hope it works perfectly, but there’s no guarantee.
Reconditioned Mitsubishi Gearbox Specialists
Reconditioned gearboxes sit somewhere in the middle, offering a balance between cost and reliability. These units have been taken apart, cleaned, inspected, and had worn parts replaced with new or refurbished ones. Specialists often upgrade certain components during the rebuild process to make them stronger or more durable than the original. This can be a really smart move, especially for performance applications. You’re getting a unit that’s been professionally gone through, often with a decent warranty, at a price that’s usually less than new. It’s a good way to get a ‘like-new’ gearbox without the ‘brand-new’ price.
When looking at reconditioned units, pay close attention to what was actually done during the rebuild. Some are just a basic service, while others involve significant upgrades to gears, bearings, and synchros. Ask questions about the process and the parts used.
Mitsubishi Evolution Gearbox Upgrades
So, you’ve got a Mitsubishi Evolution, and you’re thinking about giving its gearbox a bit of a boost. That’s a smart move, especially if you’re pushing more power or hitting the track. These cars are built for performance, and their transmissions can handle a lot, but there’s always room for improvement. We’re talking about making things stronger, shifting smoother, and generally making your Evo feel even more connected to the road.
Enhanced Mitsubishi Evolution 5 Speed Gearboxes
Many Evo owners stick with the factory 5-speed, and for good reason – it’s a solid unit. But when you start adding serious horsepower, the stock gears and synchros can start to show their age. Upgraded gearboxes often come with things like carbon fiber synchro rings. These give a better bite when you’re shifting hard, especially at higher RPMs. They also replace worn-out parts with stronger ones, like beefier bearings and sometimes even reinforced input shafts. It’s all about making sure the gearbox can keep up with your engine’s demands without skipping a beat. Think of it as giving your Evo’s transmission a much-needed tune-up, but with parts designed to handle way more abuse.
Performance Gear Ratios For Evo Models
Beyond just strengthening the existing gearbox, you can also change the gear ratios. This is where you can really tailor the car’s performance to your driving style or intended use. For example, if you do a lot of drag racing, you might want shorter gears for quicker acceleration off the line. If you’re more into road racing or high-speed cruising, longer gears can help keep your RPMs lower on the highway, saving fuel and reducing engine wear. Some setups even offer custom final drive ratios, which affect all the gears at once. It’s a bit like choosing the right tires for a specific track – the right ratios make a huge difference in how the car feels and performs.
| Gear | Stock EVO 8 (Approx.) | Stock EVO 9 (Approx.) | Performance Option (Example) |
|---|---|---|---|
| 1st Gear | 2.928:1 | 2.785:1 | 2.785:1 |
| 2nd Gear | 1.950:1 | 1.950:1 | 1.950:1 |
| 3rd Gear | 1.407:1 | 1.444:1 | 1.444:1 |
| 4th Gear | 1.031:1 | 1.096:1 | 1.096:1 |
| 5th Gear | 0.720:1 | 0.720:1 | 0.720:1 |
| Final Drive | 4.529:1 | 4.529:1 | 4.111:1 |
Custom Gearbox Builds For Racing
For serious racers, a fully custom gearbox build is often the way to go. This isn’t just about swapping a few parts; it’s a complete overhaul designed for extreme conditions. We’re talking about things like shot peening and super finishing all the gears and internal components to reduce friction and wear. Some builds even include modifications to the oiling system to make sure critical parts get plenty of lubrication, even under heavy G-forces. They might also use stronger, custom-made shafts and bearings that can handle hundreds of foot-pounds of torque. These custom builds are designed to withstand the rigors of constant abuse on the track, race after race. It’s a significant investment, but for competitive use, it can be the difference between finishing the race and watching from the sidelines.
When you’re looking at a performance gearbox, especially for racing, it’s not just about raw strength. It’s about how the parts work together. Things like custom-ground shims, precise gear meshing, and improved oil flow all contribute to a transmission that’s not only tough but also efficient and reliable under extreme stress. It’s the sum of many small, carefully executed details that make a big difference.
Key Components Of A Rebuilt Mitsubishi Gearbox
When you’re looking at a rebuilt Mitsubishi gearbox, it’s not just about slapping in some new parts. A proper rebuild goes way deeper, focusing on making the whole unit stronger and more reliable than it was when it left the factory. Think of it as giving your gearbox a serious upgrade, not just a patch-up job.
Upgraded Synchro Rings And Bearings
One of the first things you’ll notice in a quality rebuild is the attention paid to the synchronizer rings and bearings. Standard synchro rings can wear out, especially with spirited driving. Rebuilt units often swap these out for tougher, sometimes carbon-fiber, versions. These grab the gears better, making shifts smoother and quicker, even when the transmission is hot. Bearings are another big one. Upgraded, high-load bearings are frequently used, especially in places like the output shaft. This helps the gearbox handle more torque without premature failure. It’s all about making sure those spinning parts can take the stress.
Reinforced Input Shafts And Gears
The input shaft and the gears themselves are critical. On high-performance Mitsubishi models, these can be weak points under heavy load. A good rebuild will often inspect these very closely, and sometimes even replace them with stronger aftermarket options. Shot peening, a process that hardens the surface of metal parts, is commonly applied to gears and shafts. This significantly increases their resistance to fatigue and breakage. Some rebuilders even go as far as to use different materials or designs for the input shaft to better handle the forces involved, especially in cars making a lot of power.
Optimized Oiling Systems For Durability
Keeping things cool and lubricated is absolutely vital for any gearbox, but especially for one that’s being pushed hard. Rebuilders often modify the internal oiling system. This can involve cleaning out old passages, creating new ones, or adding internal channels and galleries. The goal is to make sure oil gets to all the important, high-stress areas more efficiently and consistently. Some even modify the oil sump or add external coolers. A well-oiled gearbox runs cooler and lasts much longer.
A lot of people think a rebuilt gearbox is just like a new one, but it can actually be better. By addressing known weak spots and using better materials, a properly rebuilt unit can often outlast its original counterpart, especially if it’s being used for performance driving or racing.
| Component Type | Standard | Rebuilt Upgrade Example |
|---|---|---|
| Synchro Rings | Brass | Carbon Fiber |
| Input Bearing | Standard | Tapered Roller Bearing |
| Gears | Standard | Shot Peened |
| Oiling System | OE Flow | Increased Flow Channels |
Choosing The Right Mitsubishi Transmission
So, you’re in the market for a new gearbox for your Mitsubishi, and it’s not as simple as just grabbing the first one you see. There are a few big things to think about to make sure you get the right fit for your ride. It’s kind of like picking out a new pair of shoes – you wouldn’t buy hiking boots if you’re just going to the beach, right? Same idea here.
2WD vs 4WD Mitsubishi Gearbox Fitments
This is a pretty big one. Mitsubishi has made a ton of different models over the years, and many of them came in both two-wheel drive (2WD) and four-wheel drive (4WD) versions. The gearbox is a key part of that drivetrain. A 2WD gearbox is designed to send power to just one axle, usually the rear. A 4WD gearbox, on the other hand, is built to split power between both the front and rear axles, often with a transfer case integrated or attached. Trying to put a 2WD gearbox into a 4WD vehicle, or vice-versa, is usually a recipe for disaster. You’ll run into issues with driveshaft connections, mounting points, and how the power is actually distributed. Always double-check if your car is a 2WD or 4WD model and make sure the gearbox you’re looking at is designed for that specific setup. It’s usually listed in the gearbox’s code or description, so pay close attention.
Manual vs Automatic Mitsubishi Transmissions
This is another major decision. Do you prefer the control and engagement of a manual gearbox, or the ease and convenience of an automatic? Manual transmissions offer a more direct connection to the engine and can be more engaging for spirited driving. Automatics, especially modern ones, are incredibly smooth and can make stop-and-go traffic much less of a chore. When you’re shopping, make sure you’re looking for the type of transmission your car originally came with, or the type you actually want to install. Swapping between manual and automatic isn’t impossible, but it’s a much bigger job, involving different pedals, shifters, clutch systems (for manual), torque converters (for automatic), and a whole lot of wiring and computer reprogramming. Stick to the same type unless you’re ready for a serious project.
Identifying Correct Gearbox Codes
Mitsubishi, like most manufacturers, uses specific codes to identify their gearboxes. These codes are like a serial number for the transmission and tell you a lot about its specifications. You’ll find these codes stamped onto the gearbox casing itself, or sometimes on a sticker. They can indicate things like the number of gears, whether it’s 2WD or 4WD, the gear ratios, and even the specific model it was designed for. For example, you might see codes like ‘W5M42’ for a manual or ‘V5A51’ for an automatic. If you’re unsure, your car’s owner’s manual or a quick search online using your car’s year, model, and VIN can often help you find the correct code. Getting the right code is probably the most important step to avoid buying the wrong part.
When you’re looking at gearboxes, especially used ones, it’s always a good idea to ask the seller for the gearbox code. This code is your best bet for confirming compatibility. Don’t just rely on the seller saying ‘it fits my Evo 8’; verify it yourself with the code. It saves a lot of headaches down the road.
Purchasing And Logistics For Your Gearbox
So, you’ve found the perfect Mitsubishi gearbox for your ride. Awesome! But before you get too excited, let’s talk about the nitty-gritty of actually getting it and what happens next. It’s not quite as simple as clicking ‘buy now’ and having it magically appear, though wouldn’t that be nice? There are a few things to consider to make sure the whole process goes smoothly.
Most places sell gearboxes on an exchange basis. This means you’ll likely pay a surcharge upfront, which is basically a deposit. This surcharge is fully refundable, but only if you send your old gearbox back. It’s got to be in decent shape, though – no missing bits, no cracked casings, and it needs to be complete. If it’s leaking oil or just won’t engage, they might not give you that surcharge back. So, make sure your old unit is serviceable. The idea is that they get your old gearbox, refurbish it, and then sell it to someone else. It’s a pretty common system to keep costs down for everyone.
The exchange process is designed to be as easy as possible for you. Keep all the packaging and securing bits that your new gearbox arrives with. They’re super handy for packing up your old one for the return journey. Just remember, getting your old gearbox back to the seller is usually your responsibility and cost.
When your new gearbox is ready, it’ll probably arrive on a pallet, all strapped down. Pay attention to how it’s secured; it’ll give you a good idea of how to pack your old one for its trip back. The shipping cost you see advertised is usually just for getting the gearbox to you. If you want them to arrange the pickup of your old unit, that’s often an extra charge. Shipping within the UK mainland is pretty standard, but if you’re in the Scottish Highlands or Northern Ireland, expect to pay a bit more. Some places might even offer to handle the return shipping for you, but again, it’ll cost extra, often the same as the initial delivery fee.
This is a big one. Always check what kind of warranty comes with your gearbox. Some places offer a year or 12,000 miles on fitted units, which is pretty decent. If you’re just buying it to fit yourself, the warranty might be shorter, maybe six months or 6,000 miles. And for any smaller parts you buy, like seals or bearings, expect an even shorter warranty, perhaps three months. It’s good to know what you’re covered for, just in case something goes wrong down the line. Don’t be shy about asking questions before you buy – it’s way better than dealing with a problem later.
Specialized Mitsubishi Gearbox Modifications
High Torque Capacity Enhancements
When you’re pushing your Mitsubishi hard, especially in performance applications, the stock gearbox can become a weak link. We’re talking about modifications designed to handle serious power. This often involves upgrading key internal components. Think stronger input shafts, reinforced gears, and specialized bearings that can take a beating. The goal is to prevent premature failure under extreme loads, like those seen in racing or aggressive driving. We can also look at improving the oiling system to keep everything cool and well-lubricated, which is a big deal for longevity when you’re making a lot of power.
Improved Shifting Speed and Precision
Beyond just strength, modifications can make your gearbox shift faster and more smoothly. This usually means upgrading the synchronizer rings. We’re not just talking about standard replacements; we’re talking about things like carbon fiber synchro rings. These offer better grip at higher RPMs, allowing for quicker gear changes without grinding. We also look at the shift forks and sleeves, sometimes updating them to reduce slop and improve the feel of each shift. It’s all about making the gearbox feel more responsive and precise when you need it most.
Advanced Materials For Longevity
Using better materials is a big part of making a gearbox last longer, especially when it’s modified for high performance. This can include things like shot peening gears and shafts. It’s a process that strengthens the metal surface, making it more resistant to fatigue and wear. Another technique is called ‘super finishing,’ which makes the surfaces incredibly smooth. This reduces friction and heat, which in turn helps the gearbox last longer and perform better. We also consider things like using higher-grade bearings and seals that can withstand more abuse than stock parts.
Wrapping Up Your Mitsubishi Gearbox Search
So, finding the right gearbox for your Mitsubishi doesn’t have to be a headache. Whether you’re looking for something brand new, a solid used option, or a fully reconditioned unit that’s like new again, there are plenty of choices out there. We’ve seen how some sellers really go the extra mile, offering upgraded parts and detailed work to make sure you get a transmission that’s built to last, even for high-performance needs. Remember to check the specifics, ask questions if you need to, and compare your options. Getting the right gearbox means your Mitsubishi will keep running smoothly for a long time to come. Happy hunting!