I agree with Gillsy. Mystik JT-6 Hi-Temp EP#2 Lithium-Complex has very similiar specs. as Chevron Delo EP #2 L/C. Either one is an excellent chassis/wheel bearing/universal joint grease. I use both. If you're having difficulty finding a single tube of the Chevron, most Wal-Marts (at least in Texas) carry the Mystik. There is one caution with the Mystik...they offer more that one JT-6 product. The one you want for automotive/truck applications is the JT-6 Hi-Temp Lith-Complex #2.
If I remember correctly, the Cerulean that nthach mentioned above DOES have similiar good specs...and you will not go wrong with Valvoline GM spec. L/C #2. While the specs won't quite match the 3 previously mentioned products, it is certainly better than, 'good enough,' for the afore-mentioned auto apps., and it is very available.