w2racing Posted September 27, 2013 Report Share Posted September 27, 2013 Need to know what gear is optimal for a 7.5 metric pure stock. Will be running a 350 automatic. Link to comment Share on other sites More sharing options...
DirtRacer9s Posted September 27, 2013 Report Share Posted September 27, 2013 Depends on how high you want to spin your engine. 4.10 rear in second gear would give you a 6.24 final. 2.56 rear in first gear would give you a 6.45 final. 2.73 rear in first gear would give you a 6.87 final. This would be your best bet. You shouldnt spin more than 6500rpms with this final at STS in a purestock. I run a 6.88 final in my car. 3 speed saginaw with a 4.10. Link to comment Share on other sites More sharing options...
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