I was sent a plastic bearing and gasket kit from Kohler to repair this faucet as it will no longer move freely from side to side. I have removed the faucet from the sink and taken off the handle, bonnet, and valve, but I cannot see how to remove the neck/body housing from the internal body assembly in order to get to the bearing and gasket. Please advise. Thank you.

Plumbing - Kohler - Model 10433: Fort® Single-control Pullout Kitchen Sink...