[JeffJ]

I am swapping out the crappy repro stuff with dynomat, but how thick?
It comes in .125 .250 and .5 (that seems way too thick.

How thick was the stock stuff??

 

[1969XR7Vert]

The stock tar-based mats were probably closer to .250" than .125", but Dynamat (or equivalent) would not be a 1 for 1 to the original since they are different materials and work differently. .125" should be plenty, I used .080" eDead80 on my car.