I run a deep aluminum from TCI on one car, and on the firebird I run the factory 400 turbo GM deep pan used on the 1 ton trucks from the 70's-80's, same thing that's still on my 79 1 ton.
Both work just fine, the factory steel deep pan being much easier on the wallet. Still found in the junkyards occasionally. Was still available from GM about 15 years ago but I think has since disappeared.
My father also runs an aluminum TCI deep pan on his. No issues with any of them.
Last edited by Formulajones; 08-04-2017 at 08:58 AM.
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