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What is a GVM Upgrade? Gross Vehicle Mass (GVM) refers to the maximum allowable weight for your vehicle, including passengers, cargo, and any accessories. A GVM upgrade is a legal modification that increases this weight limit. This is achieved through a professional suspension upgrade that’s been rigorously tested and engineered to ensure safety. Why Consider…

Maybe it’s the perfect occasion for an unplugged family long weekend away, or perhaps you’ve planned the ultimate fishing & camping trip with the lads. Either way, you realise that you have a tonne of shit to carry and very little car space.  It’s times like this where your mate usually drops ahhh told ya,…

Potential Issues Faced When Upgrading 4×4 Suspension Upgrading suspension components of a 4×4 vehicle is a common modification aimed at improving off-road performance, ride quality, and overall vehicle handling. However, the process is not without its challenges. Fitters may encounter a range of issues that can complicate the upgrade and potentially lead to increased costs…

This is one of the most common questions asked by our customers when upgrading their 4×4 vehicle. And the answer is often the same. Read on to discover if a 4×4 winch is for you. If you plan on going off-road, you will eventually get bogged. It’s not so much a matter of if, but when,…

Have you ever seen a decked out 4×4 and immediately knew there wasn’t a snowball’s chance in hell that it was road legal? It has become more common to see fourbies fully kitted out with the latest 4WD accessories and tech on the streets of Perth. After all, nothing is more exciting than picking up…

Having a tough time figuring out what kind of 4×4 suspension lift kit to install on your vehicle?  You’re not the only one. What is the best 4×4 suspension for my car? When it comes to choosing the right suspension system for your rig it all comes down to how well it performs with the…

What Is A Differential Look at any vehicle on the road and you will see at least one differential. Virtually every vehicle built since the 30’s has a differential attached at the drive shaft. And why would they not? Differentials allow for cornering, different wheel speeds (hence the name), power distribution and are responsible for…

Front vs Rear 4WD Lockers Manual cars are more interactive, give better feedback and allow the driver to feel more involved with operating the vehicle. Your clutch is one of the most hard-working parts of your car. How do you tell if there is a problem, and how bad can problems be? What do we…

Front vs Rear 4WD Lockers Few people buy a serious 4WD without at least an aspiration to head one day off road. Most 4WD class vehicles in dealerships today cater to these casual 4×4 drivers. But what if you are a serious off-road enthusiast? What if you want or need a vehicle that can handle…

What Is A Differential Never heard of a differential? The experts at Coastals are here to give you the lowdown on what a differential actually is and why it’s critical to smooth, safe and reliable driving. You’ve probably come across vehicles without differentials – like go karts – that offer poor handling and seemingly unpredictable…