Seller notes

Custom New Steel 16-Gauge TunnelComes Fully Formed, Welded And Ready To InstallEnlarged Nearly 2" To Allow Easy Installation Of GM 4L60, 4L80, 6L80, 6L90 TransmissionsAlso Works With The GM 8L And 10L Series Transmissions And T56Designed For Use With Stock FirewallRequires Cutting, Welding And Fabrication Skills To InstallFor over 10 years now, we have been selling on eBay under the name old_chevy_stuff with 100% positive feedback. We have opened this new account under our actual business name: ...

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