Just wanted to let yall know what happened, driving down the highway 80mph, whine on decel, went away on accel, first time ive ever heard it was this moment. i kept driving, about 2 minutes later kaboom, pulled over, had it towed home, put it on stands, saw the transfer case, went inside. I sent it into the shop, they replaced the t-case, the trans, and the driveshaft to the tune of 6k. 07 CX9 167k miles.