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AdventureBuddies · 05-19-08, 04:15 PM

cross bars and gutter mounts are much better, but the factory rack will work. I used a yakima box on a factory 4runner rack and it works fine and can handle the weight. The biggest concern with using the factory rack is not if it can handle the weight / downward pressure of the box, rather the uplift created by the car's forward speed (especially combined with a gusty headwind). if a factory rack fails, it will be in the upward direction and your box will take the crossbars (or possible the parrallel rails that attach to the roof) right with it.

i got thule feet and the long crossbars off craigslist and ebay for $60 or $70 total. keep an eye on the ads and you'll score a deal and it's well worth it for the peace of mind.

05-19-08, 04:15 PM	#4
AdventureBuddies IH8MUD Junior Join Date: Oct 2007 Location: SoCal Posts: 177	cross bars and gutter mounts are much better, but the factory rack will work. I used a yakima box on a factory 4runner rack and it works fine and can handle the weight. The biggest concern with using the factory rack is not if it can handle the weight / downward pressure of the box, rather the uplift created by the car's forward speed (especially combined with a gusty headwind). if a factory rack fails, it will be in the upward direction and your box will take the crossbars (or possible the parrallel rails that attach to the roof) right with it. i got thule feet and the long crossbars off craigslist and ebay for $60 or $70 total. keep an eye on the ads and you'll score a deal and it's well worth it for the peace of mind. __________________ 97 CE: BFG AT 315s, OME heavies, 3x locked pin7, 4.56, ARB front, M12000, Kaymar rear, snorkle, Husky, seat covers, sub tank, Maggiolina Grand Tour RTT. "It's a shame that at this moment all of the people who best know how to govern the world are busy drinking beer."