When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
You only want to do the rear, it's what needs the cooling. Aluminum on the front, not so great. Try auto parts resellers from wrecking yards, compare to buying over the counter. I believe the 6.4 almost all got the aluminum covers. There are also some aftermarket you can buy at parts stores. I haven't bothered here where it's mostly so cold, it's not an issue for me. If you are dong max towing frequently I can see some benefit though.
im good without the composite pan (unless is had a threaded drain plug somehow, but thats neither here nor there) but im kinda wanting the aluminum covers now. anyone know about Mag-Hytec covers? they seem like the ticket...