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   QA1 now has updated K-members, engine mounts and transmission crossmembers for 1979-2004 Mustangs via Marken Performance for 50% weight savings, increased header clearance, and improved geometry provided by a QA1 K-member. These kits can be used for engine swaps for: Windsor 5.0L, 4.6L, LS, and Small-Block Chevy.  If choosing to use an LS or SBC engine, various GM transmission conversion crossmembers have also been released.  All crossmembers include a polyurethane transmission mount and all necessary hardware for bolt-in installation. 




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