These are the same queations that pop up about the fuel line
which doesn't have a rubber flex line from the frame to the engine.
These engines have quite ridged isolation mounts and move very
little. Metals that aren't taken to their yield point will
flex millions of times till they fatigue. The movement of
the L o n g exhaust pipe and L o n g fuel line to from the
pump back never reaches its yield point.
The proof is in the millions upon millions upon millions of
vehicles that were built that way for many many decades
without failure. Since it's your property now, you of
course have the right to redesign your truck any way
you see fit if you feel that your a better engineer
than the engineering staff that GM employed.
Denny Graham
Sandwich, IL
HI Denny
I was thinking the GM engineering boys back in the day must have known what they were doing but even my 1947 CJ2A Willys Jeep that I rebuild everything was rubber mounted...it was funny seeing the pictures on here of the solid mounted tailpipe and muffler too..but as you said it must have worked...look at all the millions of these trucks that were built and driven millions of miles...
I am just trying to keep it as stock as possible so when I go to sell it there are less questions to be answered...
I learn every day I work on this old rig...but it really makes me appreciate my daily driver more and more...
Thanks for all the insight...
MikeC