Revised field IDs and 2 hidden fields too

// Gform after submission
add_action('gform_after_submission', 'post_to_third_party', 10, 2);
function post_to_third_party($entry, $form) {

    $post_url = 'http://www.clientservices.us/TowerMedia/Post.aspx';
    $body = array(
        'name' => $entry['1'],
        'street_address' => $entry['4'],
        'city' => $entry['5'],
        'state' => $entry['6'],
        'zip_code' => $entry['7'],
        'phone' => $entry['3'],
        'date' => $entry['8'],
        'ip' => $entry['9']
        );

    $response = $request->post($post_url, array('body' => $body));

}