are 4.11's a Chrysler, Ford gear ? I've always heard of them being in those, but never in a Chevy drive train

 

Yukon makes a "4.11" for our trucks, but like was stated above, mathematically it is the same as a 4.10.

 

i just got a set of 4.10 richmonds brand new for a SMOKIN deal off my buddy otherwise i woulda went wit motives (o well)... but im going from 3.73s, will be a lil diff but not as much as you will see from 3.42s, that will make a world of diff im sure

 

 

With the 4L60E trans what is the crusing RPMs with a 4.11 at say 60 mph and 70mph? Right now I have 3.23s and at 70 I am running around 1800 to 1900. I would guess that the formula for every tenth is roughly a 100 rpms cruising that I would be in the 2700 range. If I am correct please let me know. Thanks, I can't deside between 3.73s and 4.11 I am afraid that going 3.73 wouldn't be enough of a change for me.

 

With 4.10:1 gears RPM would be about 22% more.
With 3.73:1 gears RPM would be about 14% more

 

It is a percent rpm, not a set one that it would be more. I run right ~2300rpm@70mph. Yukon 4.11 & 4l60e. My tires are 275/70/16...~31.15" tall.

 

so which gears manufacture is the best....motive. richmond, yukon, precision ???? might be missing some but let me know

 

AAM I think. They make the OEM gears for GM.

 

has anyone had problems with richmond gears? Those are what im lookin in to.