i had a very large tree fall on my truck on my driveway during hurricane helena . can i claim that

You probably do not have a loss you can claim.  In order to claim a tax deduction for your loss, the area in which you live would have had to have been designated a "Federal Declared Disaster".  According to the IRS:

Generally, if the loss is caused by a federally declared disaster, you may deduct personal casualty losses relating to your home, household items, and vehicles on your federal income tax return.

And if you were in a Federal Disaster Area, you would take the total amount of your loss and subtract 10% of your adjusted gross income from that total to calculate your allowable casualty and theft losses for the year. 

For more information see: IRS Topic no. 515, Casualty, disaster, and theft losses

As far as insurance coverage goes, your loss would have been covered under "Comprehensive" coverage, if you had it.