I have not printed this so I'm not sure of the fitment. Used a 3D FJ80 model to build around it.
The mounting holes are 3mm in diameter and 43mm center to center. The D-Ring mounts are also 3mm holes. There is a 6.2mm W x 6mm H hole for a 1/10 scale trailer hitch.
The mounting brackets are curved upwards to accommodate for the body. Currently there are no holes for the hitch, you can either add these or drill them out after it's printed.
*This would be for a trimmed hard shell body (removal of stock bumper)
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You can check out the matching front bumper here
The author hasn't provided the model origin yet.