I've got a leak as well. Not from the rack though. It's coming from where I punched the hole for my HAM antenna. Hopefully, it won't be raining tomorrow and I can get in there to fix it. I think I have some silicone in the garage...
I kept the washers intact also.The one thing I did when I installed my rack, and when removed it was to keep the OEM Toyota washers intact. There are a few OEM pieces in the assembly, and they are crucial to maintain a waterproof seal. Thats just my experience. I'm sure there are other successful ways.
Saw that! Thanks FJ. How do u know if anything is broken (is it obvious, rattling etc?)