The Dodge Challenger Message Board

Has anyone used a product by time-cert to repair stripped bolt holes? I see on their web site they are a solid screw thread incert rather than a spring thread like a heli coil. The tranny bolt holes in the bell housing that came with my Challenger are in tough shape, some are stripped out and others have damaged heli coils. The car was raced so I`m sure the tranny was R&Rd regularly with air tools. Has anyone ever removed a damaged heli coil?