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12-21-2015, 06:06 PM
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Opinion's wanted
Thinking about swapping out the 4:10 gears for a Pos trac 3:38 are 3:08 to gain some gas mileage. I don't hot rod my truck so I'm not real concerned with loosing some torque since I have the 4L80E in it also. It has a good 1 and 2 gear.
I want better than 15 MPG! What do all of you think, lets hear what you got. 
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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