anyone heard if AAM will release new axle ratios?

[ilovetrains]

Still wondering if AAM will release new axle ratios for us G56 owners.

 

[betterthanstock]

I read somewhere they are changing the ratios in the G56 to resemble the Nv5600. That would mean no new ratios.

 

[GWBourne]

I read somewhere they are changing the ratios in the G56 to resemble the Nv5600. That would mean no new ratios.

just got an E-mail back from them 2 weeks ago, the new gears they have listed on thier site as "available now" will be out in 6 to 8 months. my bet is longer from AAM and about 8 months from other companies... .

 

[Vaughn MacKenzie]

I think a better solution is to keep the G56 ratios where they are, and offer a 3. 30 and 3. 54 axle ratios. That way the closer gear spacing between 5th and 6th could still be utilized with a better final drive ratio. I've never liked the deep drop from 5th to 6th on the NV5600. A 3. 30 axle ratio would give you good gearing where you could run in 5th most of the time with heavy hauling in the mid-upper 60mph range without running real high RPM.

 

[ilovetrains]

I think a better solution is to keep the G56 ratios where they are, and offer a 3. 30 and 3. 54 axle ratios. That way the closer gear spacing between 5th and 6th could still be utilized with a better final drive ratio. I've never liked the deep drop from 5th to 6th on the NV5600. A 3. 30 axle ratio would give you good gearing where you could run in 5th most of the time with heavy hauling in the mid-upper 60mph range without running real high RPM.

It also makes for a stronger rear end.



I will anxiously await the release of the new gear sets.

 

[klenger]

I think a better solution is to keep the G56 ratios where they are, and offer a 3. 30 and 3. 54 axle ratios. That way the closer gear spacing between 5th and 6th could still be utilized with a better final drive ratio. I've never liked the deep drop from 5th to 6th on the NV5600. A 3. 30 axle ratio would give you good gearing where you could run in 5th most of the time with heavy hauling in the mid-upper 60mph range without running real high RPM.

We have a winner. Oo. Also, the trans is stronger in direct drive.



Another thought that I had that would be neat would be to give up the low-low range in the transfer case and have low range set up for towing, with a 2WD low available.

 

[betterthanstock]

The only reason overdrive was ever invented was to "overrev" the weaker/lighter driveline. A lower number final drive requires stronger driveshaft/joints. They can fix that by cutting back on power in the lower gears (as they already do). I agree it's best to have closer ratios for the 5&6 and make it possible to tow in 5th.

To tow in 5th at the rpm that you now have in 6th requires a final drive of . 78x3. 73=2. 91. First gear is a lot lower in the G56 also, so that would come in handy.

 

[steved]

I'm anxiously awaiting the production of 3. 42s for the 11. 5 and 9. 25...



steved