How to secure 2 dirt bikes in an '08?

That shipping cost is ridiculous for two d-rings!!!!

I'm concerned that with the new d-rings I bought this weekend that
1. I can't put them in an existing Torx bolt location because they require two bolts to hold in place, and
2. because if you mount these anywhere other than that, the bed isn't directly against the frame and I'm worried I'll overtighten the bolts (because I'm like super strong) or when a load is in there that it'll crack the bed.

 

well then u should have got the toyota ones like i said. the shipping is worth it. things dont ship for free these days u know. im glad i got those ones. i put them to the bed bolts and it's strong as hell.

 

Grr....you're right. I guess I should just give in and buy those since I can't find the ones I like anywhere else.