Warm rear differential...
I noticed this morning that the floor in the bed of my truck is warm after driving a few miles. The only part that was warm was the floor above the rear differential. I have not noticed this before ...
Forum Discussion
mkirsch wrote:mosseater wrote:
I don't know about the rest of you, but my diff gets pretty darned hot when I tow. Always has. You're not going to lay your hand on it very long after a trip on a summer day. To me, that's over 200 degrees.
140 degrees is hot enough where you are not going to want to lay your hand on it, and that's still pretty darned cool by lubrication standards.
If you can hold your hand on something even approaching 200 degrees, you must be from another planet.
Regardless, there is no way for the differential to transmit noticeable heat to the floor of the pickup bed, UNLESS the truck is a slammed low rider, OR the differential is on fire.
Ha, don't know if I'm from another planet or not, but I'm talking about touching it for a few seconds, not making a hand warmer out of it. Our parts washers at work run around 160-180, the feed pipe on my boiler out to the radiators runs about 160, heck even a radiator cap that's 220 or so I can touch for a second. When it get to where you can't literally touch it for one second, that's getting above 200 pretty good. My diff has been so hot after towing in the summer that I literally couldn't touch it for 1 mississippi. That's hot, prolly like 250-300. I'll have to shoot it with the IR gun next time just to see.
