My grand caravan has been slowly leaking fluid for about 18 months now. When visually inspecting, it looks like the fluid is coming out from behind a small (1" diam?) circular plastic cap on the rack. My guess is there's a seal under there. I don't want to spend the $300 for a new rack, how many of you think it's worth it to try and replace the seal in there, if that's what it actually is?

 

Don't know that you can get one.