What has popularized drilling holes for mounting roof racks is the 5th gen 4runner only because the factory mounting position is so far back.
I'm not aware of any 4th gen roof racks that require drilling.
Checkout my armor thread it has most if not all the roof racks listed.
4th Gen Armor Thread 2.0
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2005 4R Sport 4WD
"The last of the V8s!" - Custom TIG'd SS Dual Exhaust - King 2.5" +2 LT. - ARB Front & Rear - 37's - Dana 60 -
Build Thread
2005 Tundra 2WD Regular Cab V8 - Chopped Frame - Short Bed Swap
1977 Celica Liftback - LFX Swap -
Build Thread