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Bigger Alternator for towing ?????

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Harley1969, Aug 9, 2011.

  1. Aug 9, 2011 at 6:48 PM
    #1
    Harley1969

    Harley1969 [OP] Member

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    Hi Guys,

    I cannot find the answer and was wondering if someone could explain this.

    Why does a factory towing kit ( bigger batt, bigger alternator) is different then an after market hitch install.

    I've installed my hitch myself and installed an electric/hydrolic brake system. Got bigger leafs and thinking of installing air bag. So why can't I haul 6500lbs+ with my taco? why does it says max 3500lbs?

    I guess what I am not understanding is what does the battery and alternator has to do with towing?

    The reason I am asking is I am buying a large trailer (dry weight 4500lbs+- and 400lbs+- hitch weight) 32 footer and I really don't want to trade my taco.

    This trailer would be hauled less then 1000miles per summer, longest trip prob being 350miles with minimal hills. If I would consider going further I would just rent a truck for that period of time.

    Tks for your help!
     
  2. Aug 9, 2011 at 7:11 PM
    #2
    iliketurtles

    iliketurtles Well-Known Member

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    Trailer lights place extra load on the alternator.
     
  3. Aug 9, 2011 at 7:14 PM
    #3
    travelingman

    travelingman What would Scooby do?

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    Trailer brakes draw also
     
  4. Aug 9, 2011 at 7:15 PM
    #4
    06redtacoma

    06redtacoma Well-Known Member

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    i dont know what the amp draw is from an electric break controller but that is the only reason i could think of, power is not going to be your problem, stopping always is. most all trucks and cars are way overpowered now. Im in no way saying it is safe or telling you, you can do it but i have towed way more then that. i on a regular basis ask my truck to tow more then its weight, this will reduce its life expectancy but its what i need from it.
     
  5. Aug 9, 2011 at 7:17 PM
    #5
    jandrews

    jandrews Carolina Alliance Southwest Region Ambassador

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    Uh, the entire ENGINE, and everything attached to the belt system, is under greater strain when hauling a load. Thus the heavier duty parts.

    OP, a lot of things go into making a vehicle tow ready - frame, suspension, electrical bits, engine power, drivetrain engineering, etc.

    The safe bet is tow package, but people pull things above their rated level all the time...making a habit out of it probably isn't a good idea.

    Honestly, if you're going to be doing serious towing, you need a full size anyway.
     
  6. Aug 9, 2011 at 7:20 PM
    #6
    jgwheeler17

    jgwheeler17 I'm a zit. Get it?

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    bingo
     
  7. Aug 9, 2011 at 7:23 PM
    #7
    joes06tacoma

    joes06tacoma Well-Known Member

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    My understanding is that the alternator and battery are upgraded to keep up with the electric brakes. In actual practice, I doubt the alternator is going to make a big difference. If it were me, I would upgrade the battery first, and the alternator if you have problems keeping the battery charged.

    I know the towing package adds an engine oil cooler. Maybe a different fan clutch too?

    Is your's an automatic? Wondering about an aux trans cooler.

    I would be focused on finding the difference in stopping power and cooling between tow package and no tow package.
     
  8. Aug 9, 2011 at 7:27 PM
    #8
    cc350

    cc350 Buckeye Member

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    And don't forget the ATF Cooler, 7 pin trailer harness, oil cooler below the oil filter along with the heavy duty battery and alternator, class 4 receiver
     
  9. Aug 9, 2011 at 7:40 PM
    #9
    plurpimpin

    plurpimpin Well-Known Member

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    If you're going to upgrade for towing tranny and oil coolers would be at the top of my list, not the alternator
     
  10. Aug 9, 2011 at 7:42 PM
    #10
    Harley1969

    Harley1969 [OP] Member

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    Tks guys,

    from what I am gathering it shouldn't be big issue. I am not looking to tow this thing everywhere. Prob 1-2 trips 350miles max of distance. So the need of a bigger truck is not worth it, I'll just rent a bigger truck if I decide to take the TT further.

    Here's what I am looking at, any opinions or do you know someone that own's one.

    http://www.crossroadsrv.com/slingshot/

    Tks :D
     
  11. Aug 9, 2011 at 9:29 PM
    #11
    fvtalon

    fvtalon Well-Known Member

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    My understanding is all the Canadian trucks have the bigger alternator/battery anyways to deal with the colder climate.

    Otherwise, if you have a proper class IV hitch and trailer wiring a v6 should be rated at 500 lbs tongue & 5000 lbs trailer. 3500lbs is for the bumper hitch and/or 4 cylinder trucks I believe. The full 6500 lbs trailer rating is with the full factory tow package which includes the engine and transmission oil cooler in addition to the larger battery/alternator, hitch and 7 pin wiring.
     
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