matt_m

Kind of looking at the Auto Spring 1.5" kit. I measure a 1.5" rake on my 2010 Lariat SCAB when I measure from the concrete floor to the highest point of the wheel well. I like the leveled look but what are the negatives?

I'd probably keep the nearly new 275/65R18 Wild Country XTX tires that are on it for the foreseeable future--actually I'm really happy with their performance on our perpetually snow-covered roads this season. The suspension seems plenty firm so I don't see replacing shocks and struts anything soon either.

Daximus

Little bit of gas mileage.

matt_m

Even with the same tires? Is that due to a change in aerodynamics?

Z7What

I would disagree that mileage decreases...

Wayne

JWM1986

Although your mileage may change a very little bit, there are many other factors that hurt your mileage more than just a leveling kit. Improper inflation of your tires, wind, driving habits, and even a small load in the bed of the truck all probably decrease your MPG more than just a leveling kit. One downside to them is if you put a significant load in the bed you'll be riding nose high, but that can be corrected with airbags or an add-a-leaf.

smcnich

Mileage decrease is usually due to larger tires, but he mentioned he is keeping the stock size. May cause a little more wear on some parts such as ball joints causing them to wear out faster.

Daximus

I leveled my '05 and it lost a smidge in the MPG dept. It's been a few years but something like an 1/4 mpg I calculated over a couple tanks. Probably not noticeable unless you are actually calculating it.

Maybe I just drove into the wind more that month, but they put air dams on them for a reason.

ol_blue

CV angles would be the biggest negative. Along with general increased wear.. Advantages out weigh the negatives to me.

eye.surgeon

Worse mileage, more wear on suspension components, and most significantly you will be nose-up with a load or towing.

I think the more difficult question is what are the positives of leveling?

ol_blue

It sets you apart from the other couple million f150s on the road? I've clocked 35k miles with a leveling kit installed and haven't experienced any premature front end component failure. yet.