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Originally Posted by 06-H3
You sure about that? From an earlier post on H3 winch bumpers, this was the result of the stock mounting plates behind the bumper:
[image]
Despite what GM says about holding the weight of the vehicle, they are bending depending on the angle of the pull.
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Two completely different designs, and it's NOT an issue with the mounting plates, like that thread seems to say it is. The mounting plates had to be changed because of the design of the winch mount, not because the plates weren't strong enough for their intended purpose.
The winch in question is a supported 7 shape, where the winch sits much higher than the stock mounting plates and sits BETWEEN the mount front plate and steel bumper. Since the winch sits higher and mounting points are lower, any force applied will ALWAYS apply pressure downwards on the lower parts of the mounting brackets. In the case of that picture you posted, the force was multiplied even more since the pull was from a lower level.
The brackets were designed to support the weight from directly in front of the mounting plates, which would be the shackles. Even if you pulled from a high position or low position, the forces would be applied to the shackles and then distributed to the center of the brackets, not just the lower portion.
REDLYNER's design works with this method, since the winch sits between the frame rails/mounting plates, any force applied is evenly distributed between the two mounting point and there's no chance of anything bending.