C6 Gear ratios

[DNFXDLI]

Wasn't sure where to put this....Anybody had any experience with changing the first gear ratio in the C6 from 2.46 to 2.72?.

 

[Truckin4life]

I can't remember if its at the front or back of the trans. Either way the c6 is pretty straight forward.

 

[73F100Shortbed]

I can't remember if its at the front or back of the trans.

I think it's inside the trans. too.

There ya go Duncan. All the technical help you will need in fixing that up

 

[DNFXDLI]

Bwahahaha...I need to be more clear...I meant driving one that had been changed....how much more grunt did you notice?
I'm going to do a complete rebuild on the C6 in the truck and have been thinking aout changing out the gear set.

 

[DNFXDLI]

Got an email back from Coan Converters today...they want a dyno of the engine before building a converter...a PITA but I don't want to have a screw up.

 

[fatdan460]

i remember reading an article about this way back when in a 4x4 mag. i believe math-wise it equaled out to swapping from 3.50 gears to 4.10's but you still kept your final drive the same for mileage purposes.

i can't remember, but are 1st and 2nd gear from an e40d both lower than the c-6, and swappable????

 

[DNFXDLI]

i remember reading an article about this way back when in a 4x4 mag. i believe math-wise it equaled out to swapping from 3.50 gears to 4.10's but you still kept your final drive the same for mileage purposes.

i can't remember, but are 1st and 2nd gear from an e40d both lower than the c-6, and swappable????

Don't know...I just figured that I'd get the best of both worlds by changing that gear set...plus 1st gear in 4Lo would be nice.

 

[m78]

Got an email back from Coan Converters today...they want a dyno of the engine before building a converter...a PITA but I don't want to have a screw up.

Wouldn't a converter with a higher stall speed give you the grunts ?

 

[DNFXDLI]

Wouldn't a converter with a higher stall speed give you the grunts ?

To a degree...but it is part of the overall package...don't want too much slippage. Coans preliminary number is 2800 with 98% efficiency..not a cheap converter by any means.