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#1
01-14-2008, 02:44 PM
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Tranny-rear end match?
I have a 66 Lemans with a mild 400. If I choose to install a turbo 400 tranny, what would the "ideal" rear end gear ratio be? (to allow the best of both worlds both ballzy and streetablility) And!!!!!, If i choose to install a R200/R7004 tranny what would be the ideal ratio for these o/d trannys? Thanks, Cal
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#2
01-14-2008, 04:12 PM
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What size rear tire?
th400 tranny 28" tire-3.73 26" tire 3.42 These should give a good balance for street/strip. 
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9.81 at 139.89mph 3400lbs Butler 468,11.3:1 comp,N/A,PUMP 93 OCT GAS! 370cfm butler eheads port matched victor 1095 king demon 4.30gear,th400 MICKEY THOMPSON DRAG RADIAL tire  
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#3
01-14-2008, 04:35 PM
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And just to add to 79's post, I would run similar gears with the OD trans as well. Assuming you still have the mid-60's axle, whereas I would choose a 3.42 (3.55) for the 200-4R, I would instead choose a 3.23 (3.31) for the 700-R4.
Of course, everything depends on your exact combo. But generally speaking a "mild" 400 will do well with these gears.
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