Gear help!!
#1
Gear help!!
Just got a '06 z71 crew cab, 5.3 with a 6" lift and 35's with a 20x10 wheel. Sharp ride but it's sucking the hell out of some gas. I traded a '03 Tahoe for it that had 17's and 35's and averaged 12-14mpg. My truck is maybe getting 10-12.
So I'm thinking about putting in gears. I don't haul a lot and I don't mud ride in it. It's my everyday driver. So I'm wanting something to help ease the stress off my transmission and help with my mpg. Should I go with 4.55 or 4.88??
So I'm thinking about putting in gears. I don't haul a lot and I don't mud ride in it. It's my everyday driver. So I'm wanting something to help ease the stress off my transmission and help with my mpg. Should I go with 4.55 or 4.88??
#2
maybe i am missing some info; how will going to a higher ratio improve mileage. What are you running 3.73?
anything jacked up that high with huge tires has terrible aero drag.
anything jacked up that high with huge tires has terrible aero drag.
Last edited by tech2; December 12th, 2016 at 11:07 PM.
#3
I know it's going to get bad, but I've talked to a few people same they said that changing the gears will help the strain on transmission and will help
Out the mileage by 3-5 gallons. Idk tho that's why I'm asking.
Out the mileage by 3-5 gallons. Idk tho that's why I'm asking.
#4
Going to a higher numeric set of gears WILL improve fuel economy and MORE IMPORTANTLY it will help relieve some of the stress that the transmission sees. Your truck most likely has a 4L60/65E in it-one of the weakest transmissions GM has ever produced in their history. Those 35's are seen by the transmission as if you are pulling a trailer around behind you every mile you drive. This is why your fuel economy is so bad. And those big tires are also why you are going to see a drastically reduced transmission lifespan.
I would highly recommend the 4:55's. If you plan on towing-which I do not recommend under any circumstances-you should step up to the 4.88's.
I would highly recommend the 4:55's. If you plan on towing-which I do not recommend under any circumstances-you should step up to the 4.88's.