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Thread: Why?

  1. #1

    Default Transmision trouble.....

    l was driving normally today and when my truck shifted into 3rd it went booom and rocked the whole truck. When its in D or in 3rd gear its like its in neutral. it will drive in 1st and 2nd gear and reverse only... its only got 71 000 miles on it and they say i need a new transmission. l believe them but i can not understand why this has happened so early. its got the 4.3 liter engine with the 4 speed. anyone else have this happen?
    Last edited by Barnettamb; 02-22-2013 at 11:58 PM.
    2007 Chevy
    Reg cab
    4.3 v6
    32'' bfgoodrich all terrains

    If they don't sing, they don't sling.

  2. #2


    its was a hardware failure not clutches/bands. sh*t happens. Did you do alot of reverse gear pulling or heavy reverse usage? the sun shell on these are weak to hard reverse use due to the power flow through the gearset.
    01' 1500 LT Z71 ECSB 5.3L
    line-x'd front brush guard with KC Daylighters, 6000k HID lows and highs, rewired highbeams, Trans-go mild shift kit, custom stainless duals, 3500 dually OEM taillights, K&N CAI. Still have OEM fender flairs and leveling kit in boxes waiting for time.

  3. #3

    Enkeiavalanche's Avatar
    Join Date
    Apr 2010
    Piermont,NY, back in Northern NJ now, But may be in IL soon....


    When mine went in my 02 Avalanche I was in Md and thats all I heard.. Then no more 3rd or 4th Had it towed to a friends Trans shop in Ct. Only had 80K
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

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