the 4 speed frame has a removable crossmember, the automatic's crossmember is permanent. What model year was this introduced?
C3 4 speed vs. automatic frame...
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Re: C3 4 speed vs. automatic frame...
Hello George; You "flip-flopped" them. Automatics have the removable crossmember, manuals are fixed. Not 100% sure, but I think this began with the 68 model year. Hope this helps. Chuck1963 Corvette Conv. 327/360 NCRS Top Flight
2006 Corvette Conv. Velocity Yellow NCRS Top Flight
1956 Chevy Sedan. 350/4 Speed Hot Rod- Top
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Re: C3 4 speed vs. automatic frame...
Hello George; You "flip-flopped" them. Automatics have the removable crossmember, manuals are fixed. Not 100% sure, but I think this began with the 68 model year. Hope this helps. Chuck1963 Corvette Conv. 327/360 NCRS Top Flight
2006 Corvette Conv. Velocity Yellow NCRS Top Flight
1956 Chevy Sedan. 350/4 Speed Hot Rod- Top
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