Thread: 6 speed in 2.5
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Old 10-09-2018, 02:09 PM   #5
911monty
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Quote:
Originally Posted by truegearhead View Post
I’ve already choked down on the diameter for this reason but am thinking about going to 16” wheels. How about this option, looking at the ratios a 2.7 transmission with a 2.5’s final drive would give me a 6% lower gear in 4th and 5th. Anyone know of a 2.5 final drove can be installed in a 2.7 transmission?
Since ring and pinion have to be matched I'd think you'd have to tear down the trans to change the pinion. Even though both trans use a 9 tooth pinion gear the pitch difference would change from a 32 tooth to a 35 tooth ring gear.
Why not just install the 2.5 trans? You get the better gearing and can easily go back.
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