I just moved back into a lmm duramax from my 2013 F250 and I am driving myself crazy on which tires to get. Right now my truck came with 295/70r17 terra grapplers on stock 17s and it has a leveling kit. I have not done the small fender mod but they rub a very small amount when I turn the wheel all the way to the right.
My question is I want to go with a 20x9 0 offset because I want my tires to just stick out a tad but I cant decide on which tires to go with. I started out thinking I would go for a 305/55r20 for looks because I don't care about trimming to make them work but I know that they will drop my hand calculated 20 mpg highway down. I drive 6k miles a month mostly highway and I don't mind having the fuel savings since my f250 only got 16 highway.
The tires I am considering now are a 305/50r20 or 285/55r20 terra grappler g2.
I really like the fact that the 305/50r20 would give me the perfect stance I am looking for with the 20x9 wheels. My fears are that since I have the 295/70r17 now which measure 33.19x12.13 that the 305/50r20 will look to small being that they measure 32x12.4. Also I am afraid that because the tires will be an 1" shorter that they will make my rpms higher when I am driving 75-80mph resulting in less mpg even though they weigh 5lbs less per wheel. When I went from a 35" tire to a 33" tire on my f250 I ended up losing highway mpg because my rpms were a lot higher so that freaks me out. Also the 305/50r20 are a little wider which I know creates more rolling resistance.
On the other hand the 285/55r20 will look a little taller but they will not really stick outside the fender at all because they are only 11.7 wide.
So my questions is what would yall do? I am trying to order in the next few days. My one thought was to get the 285/55r20 and run a very small spacer to just stick the tires out a tad bit more. I know I sound crazy but I have made to many mistakes with tire sizes in the past haha. Let me know and I appreciate your help.
My question is I want to go with a 20x9 0 offset because I want my tires to just stick out a tad but I cant decide on which tires to go with. I started out thinking I would go for a 305/55r20 for looks because I don't care about trimming to make them work but I know that they will drop my hand calculated 20 mpg highway down. I drive 6k miles a month mostly highway and I don't mind having the fuel savings since my f250 only got 16 highway.
The tires I am considering now are a 305/50r20 or 285/55r20 terra grappler g2.
I really like the fact that the 305/50r20 would give me the perfect stance I am looking for with the 20x9 wheels. My fears are that since I have the 295/70r17 now which measure 33.19x12.13 that the 305/50r20 will look to small being that they measure 32x12.4. Also I am afraid that because the tires will be an 1" shorter that they will make my rpms higher when I am driving 75-80mph resulting in less mpg even though they weigh 5lbs less per wheel. When I went from a 35" tire to a 33" tire on my f250 I ended up losing highway mpg because my rpms were a lot higher so that freaks me out. Also the 305/50r20 are a little wider which I know creates more rolling resistance.
On the other hand the 285/55r20 will look a little taller but they will not really stick outside the fender at all because they are only 11.7 wide.
So my questions is what would yall do? I am trying to order in the next few days. My one thought was to get the 285/55r20 and run a very small spacer to just stick the tires out a tad bit more. I know I sound crazy but I have made to many mistakes with tire sizes in the past haha. Let me know and I appreciate your help.
