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  1. #1

    Default Gas mileage question

    I currently am running a 5 inch rcx lift on 33 and wanted to know if you guys thought if i changed my lift to the 7.5 inch lift and put 35s would i see much worse gas mileage than i am already getting. Around town i get about 12.
    ----2010 Chevy Silverado-5 inch roughcountry lift--2 inch roughcountry leveling kit--18 inch KMC XD Monsters--33 inch Nitto Trail Grapplers--magnaflow exhaust system-- 12 inch mtx subs--1000 watt kenwood amp--custom subthump box---memphis street edge door speakers-- kenwood radio-- 15% tint----


  2. #2

    Default

    Not if you regear for the upgrade in tire size.

  3. #3

    Default

    okay would it cost much to regear it?

  4. #4
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    Not sure if you have a 2wd or 4wd, but expect to pay about ~$500 to ~$600 per differential if you have it professionally done.


    Mike (Denver, CO) - 2008 Sierra 1500 Z71 SLE 5.3L 4WD

    SUSPENSION: Rancho 4" Suspension Lift; Rancho RS9000XL Shocks; Rancho Skid Plates; Rancho MyRide Wireless Shock Controller;
    TIRES:
    BFG All Terrain KO 315/70/17
    DRIVE TRAIN: 4.56 Gears; Detroit TrueTrac Differential; True Cool 40k Transmission Cooler
    PERFORMANCE: DiableSport Predator Tuner; Custom Tuned by Diablew; Magnaflow Exhaust; AFE Cold Air Intake
    ELECTRONICS: Kenwood DNX6180 Touchscreen; Subthump box w/10" Kicker; Driver Information Center (DIC); Rear View Camera
    ACCESSORIES: Westin Brush/Grill Gaurd; Westin Nerf Bars; Truxedo Tonneau; 20% Tint; Tow Mirrors w/Heat & Signals

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  6. #6
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    mfleetwood's Avatar
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    Yeah...that just doubled your cost over a 2wd. I spent about $1,200 last year, but got some quality gears and a nice warranty. But, it was definitely worth the investment in a number of ways.

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