Not sure if I'm using the correct terminology. The underside of the Defender looks to be covered end-to-end, side to side with a bash plate. While I understand the need for rock sliders, I'm trying to understand rationale for replacing factory plates with 3rd party gear. Do the factory plates count as the "armor" needed for some trails? Anyone out there who can enlighten me?

 

Poptopp:

The new Defender has a double layer of aluminum skid plates under the engine, transmission and transfer case. These are suitable for off-roading and very important. The Defender does NOT have a forward bash / skid plate, but JLR offers one for you to purchase. Some after market folks offer this as well. It is very wise that you add it ASAP. as you will likely test it the first time you drive off-road with any vigor.

The design of the Defender tucks the rear and front differentials up within the body of the vehicle, so they are not exposed as much as on other vehicles. To date, I do not recall a suitable, available set of differential plates. Nor is their one readily available for the gas tanks -- which are exposed. They are the two square protrusions pointing down from under the rear seat. The gas tank covers many on this forum would like to have available, I think.

Unlike many other Off-road vehicles, the body of the Defender is a monocoque one, without the benefit of a truck-like frame. This puts a great premium on protecting the sill panels of the vehicle. Rock Sliders do this very effectively. They are worth every penny and pound off-road on any serious trail or in inclement weather. Yes, they are heavy and cost a bit -- but way less than fixing a damaged sill on an aluminum monocoque vehicle.

The designs of the rock sliders also protect the outer floor of the vehicle, as well as the pressure tank for the air suspension -- something you do not want to puncture on a rock.

Others will add their thoughts, I am sure.

Enjoy !!

 

@TrioLRowner just left the room..... (great post!)