27 January 2026
Speak to one of our experts.
Speak to one of our experts.
28 January 2026
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Advice Blog
If you’ve lifted your Land Rover Defender (1994–2001 & 2002–2016), Discovery 1 (1989–1998), or Range Rover Classic (1986–1994), then you already know – it’s not just about fitting taller springs and calling it a day. Once you start tweaking ride height, the suspension geometry changes, and one of the most critical angles affected is caster.
That’s where our new Polybush 1BD Caster Correction Bushes come in. Specifically designed to suit vehicles fitted with Radius Arm NTC2694, these polyurethane bushes are engineered to correct the caster angle for vehicles with 2–3″ lift kits. If your Landy is running standard ride height, we’ve still got you covered – that’s what our Polybush 1B bush is for.
Caster is the angle between your steering axis and vertical, viewed from the side of the vehicle. In simple terms, it’s what helps your wheels return to centre after a turn and keeps your steering stable at speed.
When you lift a solid axle Land Rover, the fixed geometry of the radius arms shifts, effectively rotating the axle and reducing positive caster. And that reduced caster leads to:
Wandering on the road – poor straight-line tracking
Increased tyre wear – as the tyres scrub across the tarmac
Vague steering – you constantly correct the wheel
Speed wobbles – especially on uneven roads or at motorway speeds
Correcting the caster restores your handling, improves tyre life and puts you back in control – exactly what the 1BD Caster Correction Bush is designed to do.
Absolutely, they can! On purchase, we provide easy-to-read fitting instructions for all products that have to be fitted in a certain way.
You can also find them here – 1BD Fitting Instructions & on the vehicle page.
Though we always recommend a press, in the majority of cases, you can install our bushes by hand, or with simple hand tools. But due to the 1BD’s outer metal shell, you’ll need to make a tool with a threaded bar and some sockets. We created a video showing this HERE – Or, use a press/vice.
Traditional rubber bushes can’t always cope with the demands of a lifted Land Rover – they flex more, degrade faster under load, and can allow the geometry to shift subtly under braking or cornering.
Polybush bushes, on the other hand, are:
Durable – they resist oil, fuel, weather and UV, lasting far longer than rubber
Consistent – they hold their shape under load, giving more predictable handling
Responsive – more positive road feel without harshness
No squeaks, no maintenance – thanks to our unique Polyurethane blend and precise fitment
In short, they’re built to handle everything from green lanes to gravel tracks to long hauls on the M6, towing plant machinery – and they do it with comfort and control.
Fit a set of 1BD bushes and you’ll notice the difference straight away:
Steering feels more direct and centred – the vehicle stops “drifting” around its lane
High-speed stability improves – less correction needed at motorway speeds
Better off-road control – especially when descending or crawling, as the geometry keeps the steering more predictable
Improved tyre wear and alignment – no more fighting uneven wear caused by incorrect angles
It’s the kind of improvement you feel as much as you see – and when you’re miles from home, that reassurance matters.
At Polybush, we design every bush with real-world use in mind. Our 1BD bushes aren’t just good on paper – they’re proven in everything from fully-kitted overland rigs to daily-driven Defenders that hit farm tracks Sunday and the motorway Monday.
So if you’ve given your Land Rover a bit more altitude, don’t forget to sort the attitude – get your caster back to where it should be with Polybush 1BD Caster Correction Bushes.
Fitment:
Fits Radius Arm NTC2694
For use with 2–3″ lift kits
Use 1B for standard ride height vehicles
If you’ve got questions about fitting, compatibility, or how these work with your suspension setup, give us a shout – we’re always happy to help fellow Landy fans get their trucks handling right.
