Hi khoipong- (khoi?)
I'm VX KAT (Sue)
Yes, you do need the OEM roof rack (which is two "cross members" that attach to your roof rails that run front to rear), in order to attach a Yakima basket.
I have a knack for finding used OEM roof racks. Since these are 10-12 years old, I completely clean and restore them to look darn near new.
Here's a thread showing the before and after and what all pieces are part of the OEM rack.
http://vehicross.info/forums/showthr...ng+restoration
I DO have a roof rack now that I haven't quite finished the full cleaning & restoring process yet. It will be done in a few days. I'll PM you.
Yakima says they don't have any basket that will work, don't worry, they do!! I have the Yakima LoadWarrior and it attached to my OEM cross members without any modifications. I carry my oversize spare in the basket, just like you want to do. Yakima makes a "spare tire attachment" bracket kit for around $70. I'd suggest you get that as it will work perfectly, and hold the rim/tire securely. I also have a ratchet strap on mine.
The MegaWarrior basket will also fit our bars.
Here's some pics to give you some idea what I'm talking about:
Showing the 2 cross members.
You can see the Yakima mounts perfectly curve to grab the oval cross members....um, disregard the Barbie Doll, that was part of a joke we did last year.
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