[grazi]

I didn't have the same problem but when I went to buy a poly mount for mine we noticed there were two part numbers for the same vehicle. We called pst and they said they made two different thickness mounts for whatever reason and you have to measure the one you have and match it or it will change driveshaft angle and cause crazy vibration. They were only about 3/8" difference from what I remember. I actually have one nib. When I get home I can check height and part number.