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Need Alternator Advice

Discussion in 'Ford Trucks' started by 86 CJ, Dec 9, 2010.

  1. 86 CJ

    86 CJ Senior Member
    from MD
    Messages: 306

    I picked up a an 87 F250 5.8 to plow with this year and almost have it ready.

    I just out a brand new 850cc Battery in it, but still has the stock Alternator( I think 65amp).

    It has an 8' Western Pro plow with standard light setup and the Mark iii pump.

    I still have a battery light coming on here and there and the Alt tests at 14.5 amps at idle.

    Problem: When I hook the plow up and lift it, my voltage guage drops to like 8 :(

    The plow is also not going left, right, up and down that well..Do I need a better Alternator??
  2. affekonig

    affekonig Senior Member
    Messages: 909

  3. 86 CJ

    86 CJ Senior Member
    from MD
    Messages: 306

    What local parts store will carry that and is there any modification to it?