6 speed in 2.5

[truegearhead]

Originally Posted by The Radium King

final drive is the wheels - change your sidewall height?

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?

[911monty]

Originally Posted by truegearhead

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.

[truegearhead]

I have a 2.5 trans now, the 2.7 trans has shorter 4th and 5th gears but a taller finally drive

[911monty]

Well perhaps this option.

Audi Swap

Ok never mind I looked up in the Bently. You already have a 3.56 final drive ratio.......

Too bad you're not closer I'd give you a set of 16" wheels just to get out of my garage...

[truegearhead]

Originally Posted by 911monty

Well perhaps this option.

Audi Swap

Ok never mind I looked up in the Bently. You already have a 3.56 final drive ratio.......

I should have a 3.889 (same as Audi), the 2.7 has the 3.55.