So looking to change all the oils in the drive line. After doing some research on dodge "oil Specs" GL-5 is here then any requirements in the transmission, transfer case, and front and rear diffs. With that being said looks like AMSOIL Long Life Synthetic Gear Lube SAE 75W-90. Would be the ticket to make it a one oil needed job. But I would love any input you guys would have. The following is what this oil covers....BEN


AMSOIL Long Life Synthetic Gear Lube SAE 75W-90
Use AMSOIL Extended Drain Synthetic Gear oils in differentials, manual transmissions or other gear applications where one or more of the following standards are specified: API GL-5 & MT-1, MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton PS-037) for 250,000 miles, Dana SHAES 256 (Formerly Eaton PS-163) for 500,000 miles, Mack GO-J & GO-J+, Meritor 0-76N (75W-90) & 0-80 (80W-140), and Navistar TMS 6816 plus hypoid gear oil specifications from all foreign and domestic manufacturers such as GM, Ford and Daimler Chrysler. Can also be used in rear axles where API Service GL-4 lubricant is recommended.

 

Front and rear diffs, sure. I am not sure what transmission you have. HP gear lubes usually aren't put in manual transmissions because of the syncros. Transfer case calls for ATF+4.

 

ATF+4 in trans and transfer case, the amsoil GL is good for the diffs.

 

agree with both above...

75w-90 in the diffs & atf in the transfer & trans (G56 or auto).