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Alternator question

Discussion in 'Chevy Trucks' started by Rangr25, Dec 2, 2009.

  1. Rangr25

    Rangr25 Junior Member
    Messages: 25

    What size alternator are you guys using? Mine is clunking pretty good and I think my truck only has a 105amp so im looking to upgrade. any suggestions? I found a 200 amp would that be sufficient?
    Last edited: Dec 2, 2009
  2. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    Tell us a little more about your truck, plow/sander, etc. 200 would be nice, for sure. I run a 155 from Napa. Make sure you upgrade all your wiring to 2 gauge, including your grounds. There's a couple dozen threads about it in the Chevy Forum...
  3. overtime

    overtime Senior Member
    Messages: 153

    Agree need more info. I run 105 for 3 years no problem i did put a dual battery on this year though. If my alt needs replaced i think i would put a 155amp though
  4. Snowzilla

    Snowzilla Senior Member
    from Iowa
    Messages: 397

    Mine is oem on a K1500. I have mounted the waterproof version 'Battery Tender' brand battery maintainer to keep the battery in shape when not in use.
  5. sweetk30

    sweetk30 PlowSite.com Addict
    Messages: 1,588

    year ?

    make ?

    model ?

    motor ?

    single or dubble battery ?

    these be the specs we need !

    i have a federal signal streethawk light bar and plow lights and basic truck stuff. i found my single battery and 105 amp alt didnt cut the bill.

    i got a 200 amp from here http://www.alternatorparts.com/ been going great for years. 100 amp at idel if needed and around 220 at full tilt. from the dyno sheet thay sent me.