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You are here: Home / Archives for modifications

Up-Armoured Vehicles: Understanding Off-Road Capability

Published September 22, 2025 By Mick Farmer

Spare Tyre Departure Angle

Why spend loads of time and effort up-armouring only to produce a vehicle with poor driveability? Some companies do this better than others, so it’s important that the operator has a clear understanding of the positive and negative effects that the up-armouring process produces.

Filed Under: 4wd Vehicles, Rants and Raves Tagged With: armoured vehicles, modifications, off-road driving

AV Battery Modifications … Considerations

Published June 1, 2025 By Mick Farmer

Over the years, I’ve come across really good Armoured Vehicle modifications — and some really poor ones.

Filed Under: Mechanical, Rants and Raves Tagged With: Mechanical, modifications

Avoid Fitting HF Aerial Like This

Published November 11, 2022 By Mick Farmer

Destroyed the approach angle. I’ve always been of opinion that the aerial on the front creates a forward blind spot.

Filed Under: Equipment Tagged With: HF Radio, modifications

A Look Around Blind Spots

Published July 28, 2016 By Mick Farmer

HF Antenna Fittings and Visibility - Exterior View

Blind spots are anywhere where we can’t see without moving our vision. Most common ones which everyone is (or should be aware of) are the ones to the side of the vehicle.

Filed Under: Rants and Raves Tagged With: HF Radio, modifications, road safety

Beware Nasty HF Antenna Fittings

Published October 16, 2014 By Mick Farmer

Why do organisations insist on putting the HF radio antenna on the front? First, the mounting has destroyed the approach angle and increases the chance of damaging the antenna.  

Filed Under: Equipment Tagged With: HF Radio, modifications, winch

High Lift Jack Points: Bad and Good

Published July 21, 2014 By Mick Farmer

Modifications Which Affect Off-Road Capability Below are some really bad mods for high lift jacks points.  Some bent when used and some are obvious killers if they hit a pedestrian!

Filed Under: Equipment Tagged With: Equipment, modifications

Free Wheeling Hubs – Set Screwed to Locked Position

Published May 19, 2014 By Mick Farmer

Free Wheeling Hub - Riveted in Locked Position

Found this on an up-armoured Toyota Landcruiser.  Armouring company had done it. Quite a good demonstration about how free wheeling hubs are a waste of time.

Filed Under: 4wd Operation Tagged With: 4wd, armoured vehicles, free wheeling hubs, modifications

Examples of Modifications Which Affect Off-Road Capability: HR Radio

Published March 24, 2014 By Mick Farmer

HR Radio Modification-2 - Front View

Modifications which are being made to mount HF radios and which will negatively impact 4wd capability.

Filed Under: 4wd Vehicles Tagged With: 4wd, Equipment, HF Radio, modifications

Armoured Vehicle Modifications – Part II

Published July 1, 2008 By Mick Farmer

Central locking system in this one failed. Seems that some systems cannot take the rigours of African road conditions. Or they may just be poorly refitted/fitted when the armouring was carried out.

Filed Under: 4wd Vehicles Tagged With: armoured vehicles, modifications

Armoured Vehicle Modifications – Part I

Published January 20, 2008 By Mick Farmer

Over the last few years of doing armoured 4wd training I have come across some good modifications, but mostly bad. The bad ones mainly affect the off road capability, and therefore, the ability to pass through the environment that the vehicle is supposed to.

Filed Under: 4wd Vehicles Tagged With: armoured vehicles, free wheeling hubs, modifications

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