Greetings all! I just had a thought and I emailed Yukon gears for their thoughts. I didn't get a straight answer.
I had 4.56 Yukon gears installed about 8 months ago. We bought a 1400lb/1700lb loaded pop up camper that I've hauled twice since we bought it. These 4.56 gears pull awesome w/ 33's.
My question that dawned on me last night. Should I put an 85/140w gear oil in the rear diff? I'm saying 85/140 because Yukon states to use conventional 80/90 in their gears. I emailed them with the question/situation and the response was "Weight / viscosity is dependent on load / heat 85/140 wont cause any harm, other than being thicker and using more energy to churn thru.".
Maybe I'm weird and too inquisitive, but I didn't feel he/they answered my question of what they recommend if I towed. Am I overthinking this diff oil weight subject? Should I leave the 80/90w conventional that's in there?
I hope all of you are enjoying your summer and your Jeeps!
I had 4.56 Yukon gears installed about 8 months ago. We bought a 1400lb/1700lb loaded pop up camper that I've hauled twice since we bought it. These 4.56 gears pull awesome w/ 33's.
My question that dawned on me last night. Should I put an 85/140w gear oil in the rear diff? I'm saying 85/140 because Yukon states to use conventional 80/90 in their gears. I emailed them with the question/situation and the response was "Weight / viscosity is dependent on load / heat 85/140 wont cause any harm, other than being thicker and using more energy to churn thru.".
Maybe I'm weird and too inquisitive, but I didn't feel he/they answered my question of what they recommend if I towed. Am I overthinking this diff oil weight subject? Should I leave the 80/90w conventional that's in there?
I hope all of you are enjoying your summer and your Jeeps!