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Old 03-21-2011, 10:44 AM   #1
66redw/white
made in america
 
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Join Date: May 2010
Location: baton rouge la
Posts: 653
double overdrive

i was brainstorming the other day tryin to figure out how i could get alittle better gas mileage from my ol tahoe. 01 4wd, 5.3, 3.73, and 33" tires. right now it has a programmer, borla straight through muffler, and a k&n intake. im getting about 15 mpg. well 13 to 15 when i drive it and 15 to 16 when my wife drives it. one of my ideas was to change the gears to 5.13 and pick up one of those gear vendors over underdrive units. that would give me a .50 over drive for the highway and those steep gears should help out around town. any body ever see anything like this done before? i think i should be able to get at least 5 extra mpg outta the thing at a minimum.
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes.
sounds good

1964 c10-283 powerpack, 3 on the tree

2004 corvette- lowered, borla, tuned. slow

my old girl
1966 c10- 305v8, t-5 sold
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