Change Differential Gears to new Ratio?
Has anyone changed the differential gears in their MH to a different ratio? Our 1999 Brave is geared way too low for how we use it and my thought was that I'd get better mileage with a higher ratio. ...
Forum Discussion
DATRAHN QUOTE:My dad was a degrees mechanical engineer and worked for GM as an automotive engineer on drivetrains before he moved on to aerospace. I'm a degreed engineer also and have torn down to individual parts and rebuilt just about every automotive system in just about every type of passenger vehicle, including drive axles. To back the axles out and drop the pumpkin and replace with a different ratio part is not a big project.
I am also quite familiar with the engineering work performed during the design and component selection for any vehicle, but I also understand that the choices are based on trying to best meet the needs of a very diverse population of potential users.
My question was to see if there were any others on this board that knew of, or had direct experience with this mod. The tires approach was considered, and may well be the chosen path. My concern was adding height, road to axle and road to frame, and also having to "mental math" the speedo.
1) you claim its a dana 80? there is no drop out section re dana 60-70-80 series and installing new gears is a lengthy job and requires special tools for reading pinion depth etc
2)one can change the speedo to read correctly depending on year and model there are a few different methods and weather changing gears or tires the same mod would be required
I am also quite familiar with the engineering work performed during the design and component selection for any vehicle, but I also understand that the choices are based on trying to best meet the needs of a very diverse population of potential users.
My question was to see if there were any others on this board that knew of, or had direct experience with this mod. The tires approach was considered, and may well be the chosen path. My concern was adding height, road to axle and road to frame, and also having to "mental math" the speedo.
1) you claim its a dana 80? there is no drop out section re dana 60-70-80 series and installing new gears is a lengthy job and requires special tools for reading pinion depth etc
2)one can change the speedo to read correctly depending on year and model there are a few different methods and weather changing gears or tires the same mod would be required
