If hooks were standard issue (which they weren't) the option E93 wouldn't exist, yet has made into all the genuine parts catalogs. Second to that; when you buy a new quarter panel the hook holes would be in place (punched not drilled). So when you go looking for a new old stock 1/4 panel you would expect hook holes?

http://www.ebay.com.au/itm/HZ-HOLDEN...-/171328078731



http://www.ebay.com.au/itm/HOLDEN-HZ...-/171347350041

All genuine Ute tailgates would all have hook holes?