I'll be honest in that I have no idea on the actual bolt dimensions, but this plate does not mount to threads of the original bolt holes. It mounts to the bolts of the frame support which will need to be removed. I pulled this image from this site:
Car Trim Home TRD Skid Plate Review & Install For 5th Gen 4Runner
I used the bolts and spacers included with the plate on the 2 bolts closest to the radiator. I reused the existing frame support bolts for the rear.
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Car Trim Home TRD Skid Plate Review & Install For 5th Gen 4Runner
I used the bolts and spacers included with the plate on the 2 bolts closest to the radiator. I reused the existing frame support bolts for the rear.
Sent from my iPhone using Tapatalk