My 71 Road Runner came from the factory with 3.55 gears. The original owner installed a set of 2.76 gears for better fuel economy in about 1976. I recently bought a 3.55 sure grip third member, but not sure when I will install it. I don't mind the 2.76. I can cruise on the freeway at 70 without the high RPM. Other than putting the third member into a housing with axles, and filling with gear oil, whats the best way to store it?