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View Full Version : Other ratios for overdrive?

Mark42
11-12-2009, 03:40 PM
In the 4th gen auto trans, is there any manufacturer that makes over drive gear in a 0.6:1 or 0.55:1 ratio? Been looking, but can't find one.
BonzoHansen
11-12-2009, 03:54 PM
Not that I have seen. I guess you could look into a gear vendors unit.

What are you trying to accomplish?
Mark42
11-12-2009, 04:17 PM
If steeper overdrive gears were available, I would put in 4.10's and offset the loss of cruising economy with the steeper overdrive.

Not sure how the PCM would handle the different ratios and speedo.

just a thought.
WildBillyT
11-12-2009, 04:35 PM
Yeah, I haven't seen anything for that. A Gear Vendors would be the only way.
S.J.SLEEPER
11-12-2009, 05:17 PM
there is no gear ratio your looking for 4th.
Mark42
11-12-2009, 06:54 PM
Yeah, I haven't seen anything for that. A Gear Vendors would be the only way.

Yeah, but they are $3000. Cool stuff though.

there is no gear ratio your looking for 4th.

LOL! 4th is 0.7:1 ratio.
S.J.SLEEPER
11-12-2009, 09:05 PM
LOL! 4th is 0.7:1 ratio.

yeah, i know, i was sayin that there is no optional ratio for 4th.
and fyi it is exactly .696:1 !!!

the 6l80e 6th gear is .667 don't know if your able to retrofit it or not, just figured i would share that.:mrgreen: