So, I noticed on the W-Bodies, the radiator side of the upper motor mount has two different styles.
- First Style is a 4 bolt configuration to hold to the upper radiator brace.
- Second style uses a 5 bolt configuration to hold to the upper radiator brace.
From what I see, the 3800 drive trains use the 4 bolt style. The 3100/3400 uses the 5 bolt style. Pics of both below (one is my Monte and the other is a pic I scavenged with Google images, if it belongs to someone, thanks for posting a pic I could use to easily demonstrate my question).
OK, guys, speculate