Originally Posted by Andx0r
Does the fel-pro version of the 97 and up gasket set have the preferable aluminum frames?
No, Fel Pro does not yet market an aluminum frame LIM gasket for the 3800. By the way, it is not uncommon for the parts counter clerks at the GM dealer to tell you the aluminum frame gaskets are not specified for your '95. Their computer will show the older plastic frame gaskets. This is (in part) because of a small difference in the soft side rail seals. The aluminum gasket set is designed for newer blocks with locating pins that hold the side rails in place. Your '95 won't have these. But the side rails will still fit on your '95 just fine and seal perfectly. We have had no problems with fit and seal on these gaskets and recommend them for L36 between '95 and '03. To get some background on this, including a discussion with photos of the different LIM gaskets, please read this: http://www.bonnevilleclub.com/forum/...e=article&k=38
Our experience here on Bonneville Club has been that the plastic frame gaskets can fail within a few years or less than 40,000 miles, and that the deterioration is accelerated by Dex coolant.