The KYB part number for 2005-2010 Ody rear shocks is: 349091. The reason I know this is I paid a Honda dealer to troubleshoot a horrible clunk I was getting over bumps @ the passenger rear corner of our 2008 Odyssey LX. It wound up being a bad shock. They wanted something outrageous for an OEM Honda shock, but offered to get something aftermarket when I balked at the price. I've got the factory shock on rear left and a KYB on the right. Wonderful right? LOL. Funny that the dealer didn't even suggest replacing both sides. I didn't care to at the ~45Kmiles the van had at the time anyway. She rides/handles nice either way!
Joel
Joel