Ive pretty much read every single forum i possibly could and i am so stuck. I was supposed to have a regear done last week, but i cannot decide weather 4.56 or 4.88. I have a Toyota Tacoma Double Cab SR5 with 4.10 now and i like to go up north highway driving 3 hours on weekends but mainly city during the week. I really need help deciding which one. is 4.56 any better mpg on the highway compared to 4.88. sorry i know this has been somewhat covered before. Thanks in advance.