thoughts on diferencal lube
using mobil 90/140 in rear 75/90 in front I heard about using something different in rear any in put.
Spark plug factory or boach??

ticking at idle use 5/20 mobil extended

 

any body out there?? need some advice. what is the best gear oil to use in my 05 hemi 4x4 diferencials
motor oils
mobil or what
plug oem or Bosch
sned me in the right direction
am i asking in the right place


newbe

 

Which truck? What year? How many miles? What rearend? Those weights sound right. If it has stock LSD, it may need the friction modifier. From the 5w-20, it sounds like you have a Hemi with MDS. If so, the plugs should be changed at 30K by the book. Usually, they'll go a bit farther. Lotsa folks use NGK 5306s. If you're a masochist, you can put Champions back in it.