I believe Diamondback will still make one for you, but it's not on their website anymore. If you can find a first gen Colorado 5' cover, it should fit. you'd just have to make some mounting brackets. I found a Diamondback cover off a first gen Colorado with a six foot bed. I couldn't pass it up for the price. Cut 12 inches out of one of the panels, I paid a buddy to weld it back up for me. I had to make a few mounting brackets. Works perfect. Tacoma / Frontier covers are not the correct width, if I recall correctly. I can send you pictures of H3T mounting brackets if you should go this route.