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Thread: belt/alternator

  1. #1
    Join Date
    Jul 2005
    Location
    Loganville, GA
    Posts
    168
    hey im trying to change my belt in my truck and i need to know which size amp alternator i have to get the right belt, can anyone help me figure which amp model it is
    1999 GMC Sierra Z71 Ext Cab, True Dual Flowmasters with X-Pipe, True Flow Intake, MSD 8.5 Superconductor wires, 180 Thermo, TB Bypass, Optima Battery, Synthetic All the way around
    http://i139.photobucket.com/albums/q...7787/Truck.jpg

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    The amperage of the alternator is stamped into the housing if it's a genuine GM alternator.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Feb 2007
    Location
    Fort Worth
    Posts
    9,578
    <div class='quotetop'>QUOTE(Z71sierra7787 &#064; Apr 16 2007, 09&#58;47 PM) [snapback]90138[/snapback]</div>
    hey im trying to change my belt in my truck and i need to know which size amp alternator i have to get the right belt, can anyone help me figure which amp model it is
    [/b]
    If you can&#39;t find the amperage on the casing, take a ruler out to it and measure it---if the alternator case measures 5 3/8" in diameter, you have the 105 amp. If the alternator case measures 5 3/4" in diameter, then you&#39;ve got the 130 amp.

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's

  4. #4
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462

    Cool

    You have the 105A in your truck.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

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  5. #5
    Join Date
    Jul 2005
    Location
    Loganville, GA
    Posts
    168
    thanks for all the great help/advice as usaul
    1999 GMC Sierra Z71 Ext Cab, True Dual Flowmasters with X-Pipe, True Flow Intake, MSD 8.5 Superconductor wires, 180 Thermo, TB Bypass, Optima Battery, Synthetic All the way around
    http://i139.photobucket.com/albums/q...7787/Truck.jpg

  6. #6
    Join Date
    Feb 2004
    Location
    Sour Lake Tx
    Posts
    309
    Take your belt to the store match it up and ask what alternator that belt is for, givng you your answer and drive home with the right belt. Put your old belt it the new belt sleeve write down what amp alternator you have on it and throw it behind the seat for an emergency. problem solved.
    EATIN' FORDS AND TUNDRAS

    RIP 2005 VHO ecsb 6.0HO, Comp Cam, Nelson Tune, OBX LT's.

  7. #7
    Join Date
    Jul 2005
    Location
    Loganville, GA
    Posts
    168
    thanks for the help, i got it changed and put a gatorback on it but that wasnt the problem it was the 8 year old ac belt chirping so i replaced that too and the engine bay is now noise free, thanks again
    1999 GMC Sierra Z71 Ext Cab, True Dual Flowmasters with X-Pipe, True Flow Intake, MSD 8.5 Superconductor wires, 180 Thermo, TB Bypass, Optima Battery, Synthetic All the way around
    http://i139.photobucket.com/albums/q...7787/Truck.jpg

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