10-20-2013, 09:21 AM
Join Date: Sep 2013
Location: 3rd Planet, Sol system
Axle Ratio vs. Top Gear Ratio
I have been reading various comments made in several threads, both here and at other sites, and I have a question.
Does the factory change the top gear ratio of the transmissions, to compensate for the axle ratio, such that you always end up with the same engine RPM at, say, 60 mph regardless if you have a 3.21, 3.73 or 4.10 rear end? If true, I would assume to attempt to maintain the same highway mpg rating.
Does anyone know?
● 2014 Wrangler Unlimited Rubicon X
● 1987 Wrangler Laredo
● 1999 Cherokee Limited (Up Country,Trailer Tow)
[All custom ordered, purchased new]