[71Rat]

poly all the way! they wouldnt speak unless they arent tight. even for harshness wouldnt be noticable. the body really isnt supposed to move over the frame unless the body isnt solid or the frames bad.. or you do off-roading and flex it hardcore. The poly mounts are nice because they are more stable and wont sag or go bad as quickly as rubber. I know with the blazers they help make the body more solid with the top off.

I believe poly gets the "squeak" complaints from some suspension parts as they are always moving going down the road.

just food for thought... and keeping it in the USA, some comanys that make poly mounts are US companys (not sure if those companys make parts for our trucks) as said above most rubber parts are made overseas not sure we have many US based companys anymore