Ballenxj wrote:
StingrayL82 wrote:
I’m also going to service the Dana 70. My inclination is to run 75W140, it’s what the Dodge dealership used to put in the Dana 70 of my ‘01 Ram 3500...thoughts?
About the gear lube, I'm no expert on that, but I do know that when Idaho Drive Train installed an Eaton Tru-Trak in my Dodge van they used synthetic. I then asked them if any further maintenance was required, and they said nope, just drive it. Might be worth looking in to?
I agree with Ballenxj ... ask an established driveline expert.
A lot of more knowledgeable people here, in interior Alaska, run 75W90 in their drive axles. Especially if they're going to use the vehicles regularly in the severely subzero winter temperatures that are routine up here. (Our summer highs rarely get above 80 degrees F.)
So, I'd say 75W140 if most of your use is south of Minneapolis and especially in southwest deserts. North of Minneapolis, I'd go 75W90.
I'm a crusty old coot, so I'm still trying to 'adjust' to synthetics. Everybody seems to be using it, so maybe it's time 'to get with the times.' (I've even heard some post-1975 music I like ... )
