I wouldn't plan on the speed or RPM's of the chart you found. The tire on that is much taller than you will ever use on your mustang. I'll repeat myself from an earlier post. I find that the 3.70 is very good but I almost wish I would have done 3.50's. As is is first gear is much better than when I had a T5 (totally useless then) but the 3.50 would give me more time to let the boost build up. For a N/A car 3.70 or 3.50 would be just fine.
Rear end gears?
- Thread starter 1968-coupe
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I had noticed that, very odd, thats the same size as my fatory tires on my 94 F-150. Why they tested with such large tires i will never know. I realize that with 3.55s I would prob be looking similar to the 3.73 or even lower on the chart, which is still good.
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