Hello all,
First of all, I am no expert and this modification was not specifically recommended by Front Runner or Rhino Rack. I did this at my own risk and if you choose to try this modification, I am not responsible for any failures.
I am posting this because I struggled to find any information on what I was wanting to do. My goal was to see if anyone had mounted a RTT to a Rhino Rack pioneer platform using Front Runner's QD mounts. If you haven't checked them out, they are awesome, but they are meant to go on Front Runner racks, not other racks. Because of this, the mounting hardware was unusable with my solution to mounting on the Rhino Rack.
Quick Release Tent Mount Kit - by Front Runner
My solution was to buy the following Rotopax mount from rhino rack because it included the plates that fit into the mounting grooves of the rack.
I did not use the bolts from either the Rhino Rack mounting kit or the Front Runner kit. The reason is I wanted stainless steel bolts for the added strength and the rhino rack bolts were too small. I ended up going with a 3/4" stainless steel button head bolt with M8 x 1.25 threading. In the picture, left is the new bolt, right is the bolt that comes with the rotopax mounting kit.
Because of the difference in size, I used a drill press and a 6.9mm or 17/64" drill bit to drill out a hole big enough for tapping with an M8 x 1.25 hand tap.
Lastly, I used the bolt with a split ring washer and mounted the Front Runner mounts to the Rhino Rack pioneer platform.
The mounts are super strong and I have no doubt it will be strong enough. I can mount and unmount my tent by myself in only a couple minutes. It is absolutely worth the price of admission. Let me know if you have any questions!