[dontlifttoshift]

Originally Posted by jeds

I've heard good things about DEI heat shield.

https://www.designengineering.com/ca...und-insulation

I don't have any first hand experience with it.

I have that stuck to the bottom of a customers 69 Camaro for nearly 5 years now.....still there. Have had the trans out a couple of times in it wasn't sagging anywhere.

I use that with DEI UnderCarpet lite and it works pretty well.