wb said:
If you ever plan on using your winch or using your front bumper as a recover point, make sure the bumper you select has a similar setup. I've read the "ears" have to go about 14" back to tie into where the frame is sleeved.
cnskate said:
I'm a little skeptical of the massive frame tie-in type bumpers. An old body shop guy once told me that a even a light collision with that type of bumper can seriously tweak your frame, or unibody. I trust ARB's design. They have probably sold more than anyone else, and the Aussies offroad as a way of life.
Skepticism is good. I believe there is a lot of misinformation out there from old guys in the business (whatever that business may be). Opinion does not always equate to an objective personal experience and one person's experience is probably not obtained from examination of the whole picture.
For example, a body shop guy sees a rig with a steel bumper come in that only has a light dent and a small deflection on the left-front corner. Upon further inspection he finds the frame has been tweaked from the impact. His conclusion may be the bumper caused the frame tweak. What he hasn't considered is this apparently light collision (apparent because there's not a lot of visible damage), with a stock bumper would have caused a foot and a half of intrusion into the left-front corner of the vehicle (which for insurance purposes, would total most vehicles).
Any bumper that is not specifically designed and made to collapse will transmit the energy of an impact to where ever the bumper is mounted. If that bumper is mounted strictly at the front of the frame, the force will be transmitted there. If the bumper is affixed to a longer length of the frame, the energy will be transferred over a greater distance and reduce the amount of energy, per square inch, over that distance.
You can argue that ARB designs their bumper to absorb energy from an impact and that may be true as they use a lighter material than most aftermarket heavy bumpers. The lighter metal would absorb some energy because it'll crush. I don't see the relationship between energy absorbency and mounting unless it's desirable to have the bumper ripped off in an accident. What I do see with a minimalist mount is directing more energy over a smaller area, causing more damage to that area.
Plus I've seen frame straighteners used on uni-bodies and I've seen pictures of an ARB front bumper pulled off during winching. (My experience...)