actualy you may have a deck that is out of wack. if this is the case see about getting it level again .. many adjustments to help with this..this is the most common thing for what you said..
the other option is bent blades.. hit any rocks stumps or anything ?
hope this helps
james from ohio
james
May 2005
I can answer this question...
my blades are uneven on my riding lawn mower ..What could do this?
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