I have a 2021 1500 Laramie Ecodiesel and after a lot of research on this forum and others on lifting the ED trucks, I went with the BDS 4" lift (which does require a new drive shaft) and installed new Fuel wheels and Cooper 295/70R18 Discoverer AT3 XLT tires. It was a bit of a cluster in the beginning as the shop that performed the lift didn't check with BDS so the canopy and boxes I have in the back of the pickup was a bit too much weight for the standard 4" rear coils so the back end squatted - had to have 6" rear coils installed. Anyway, it all finally got completed and I am quite happy with the results. The ride is just as good or better than stock and the new tires performed very well in snow and mud this past hunting season.
The biggest issue I am having now is the gas mileage went to crap. I was getting 25-26 MPG with the factory setup and after the lift I am now getting around 19 MPG (a 6 MPG loss). I am not much of a mechanic but wanted to know if anyone else has experienced anything close to this and/or if there is something in the lift kit install that possibly could be torqued too tight to cause this?
The biggest issue I am having now is the gas mileage went to crap. I was getting 25-26 MPG with the factory setup and after the lift I am now getting around 19 MPG (a 6 MPG loss). I am not much of a mechanic but wanted to know if anyone else has experienced anything close to this and/or if there is something in the lift kit install that possibly could be torqued too tight to cause this?