LX570, aluminum rear bumper after rear end collision?

[nvsmythe]

Hello,

Ive been searching for an LX that has front or rear damage since the goal is to replace those with aluminum anyway.
Then yesterday I came across an ARB install video on a LX 470 that had been rear ended and through a wrench in the whole process as there was no rear beam and the collision bent the bumper support, which was welded into the frame.

so, this lead to the question on a 200 series, does it have the same structure? I can seem to find a good exploded view or picture of the rear bumper beam/ support to see if the beam can be removed or if it’s a welded in piece?

Anyone come across this before? I imagine after a rear end collision opting for a beefy rear bumper would be quite common.

 

[TeCKis300]

The 100-series and 200-series are largely similar in architecture. Both have integrated rear frame crossmembers under the bumper skin. The 100-series had a couple versions of hitches, some integrated, and some bolt on from beneath. The USDM 200-series I believe all use integrated hitches to the rear frame crossmember.

Be careful what you wish for because depending on the type of accident, it's not necessarily true that a beefy rear bumper is safer. Stock vehicles designs have energy dissipating crumple zone. No matter how small that crumple zone may be in the rear, a heavy bumper will eliminate that and transmit forces directly to the frame, then the occupants. The impulse forces to the occupants even in a small collision will no doubt be higher. The severity then determined by the intensity of impact, and the size/crumple area of the vehicle crashing into the rear. Hopefully that vehicle is smaller. If it's larger and heavier, relying on it to have energy dissipating crumple zones to protect you can be a gamble.

 

[FerzLC]

The 100-series and 200-series are largely similar in architecture. Both have integrated rear frame crossmembers under the bumper skin. The 100-series had a couple versions of hitches, some integrated, and some bolt on from beneath. The USDM 200-series I believe all use integrated hitches to the rear frame crossmember.

Be careful what you wish for because depending on the type of accident, it's not necessarily true that a beefy rear bumper is safer. Stock vehicles designs have energy dissipating crumple zone. No matter how small that crumple zone may be in the rear, a heavy bumper will eliminate that and transmit forces directly to the frame, then the occupants. The impulse forces to the occupants even in a small collision will no doubt be higher. The severity then determined by the intensity of impact, and the size/crumple area of the vehicle crashing into the rear. Hopefully that vehicle is smaller. If it's larger and heavier, relying on it to have energy dissipating crumple zones to protect you can be a gamble.

Is this the case with crash tested bumpers? Do they do less displacement than a stock one?

 

[TeCKis300]

There are some crash tested ones from Australia. Not sure if rear bumpers are tested similarly?

Bull Bar Crash Engineering

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