just make sure you put the correct oil into the diff.,, for a stock open rear use this
---------------------------------------------------------- Mopar
------------------------------------------------synthetic gear & axle
---------------------------------------------------------lubricant
------------------------------------------------------sae 75w-140
----------------------------------------------------lubricante sintetico
----------------------------------------------------de engranajes Y ejes
----------------------------------------------------------ms8985
----------------------------------------------------part number 04874469
----------------if used in Limited slipaxle,,add mopar limited slip additive 04318060ab