I wasn't sure how well these were going to fit my 2006 chevy colorado, but they appeared very close to the mounting hole size. I used my angle grinder to make it a little smaller in diameter, then put it just barely in the mount. It would not go the rest of the way that size by hand, but I wanted it snug, so I used a piece of wood and a wrench to lever it with a jack stand as I lowered the truck. It popped right in and I just had to get the nut on, which was a little tough but doable with a 1/4 socket and ratchet.
Rating:
[4 of 5 Stars!]