Aircraft Quality Aluminum Dana 60/70 (Rear Only) #9426

9426 - The PML differential covers are manufactured from aircraft quality sand cast aluminum. The casting is manufactured with a 0.160 inch wall, and 0.350 inch thick gasket surfaces. The gasket surfaces are precision CNC machined to eliminate any possibility of leaks. The gasket surface is designed to use either the re-useable OEM gasket or high temperature RTV (silicone). Plus if you need to service any part of your differential and damage the "moulded in shape" 0 ring that some manufacturers use in place of a gasket you will not be able to buy a replacement locally and will have to wait for parts delivery to complete the differential service. The design of the casting increases the rigidity of your differential case as well as provides a boss to locate your differential temperature gauge sender. If you haven't added a temperature gauge, please check the gauge selection area of our site. You might also notice that the covers are NOT powder coated! You are buying a high capacity cover to lower fluid temps and prolong the life of your differential, powder coating is an excellent insulater, it holds the heat in the cover! Every PML cover is supplied with all the necessary socket head cap screw fasteners and a magnetic drain plug, instructions for installation and technical number for any questions you might have. Remember to check our site for other performance items related to your truck. Diesel Performance Products also guarantees pricing on all of our products.