Rear Differential
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Freshman User
Joined: Sep 2002
Posts: 34
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Rear Differential
should the rear differential be hot to the touch after driving for a while?
I just pumped the old fluid out and put new 85/140 weight in. I hope I didnt screw things up too badly. I wasn't sure how much fluid to put in, so I just filled it up to fill hole on the side.
I just pumped the old fluid out and put new 85/140 weight in. I hope I didnt screw things up too badly. I wasn't sure how much fluid to put in, so I just filled it up to fill hole on the side.
Laughing Gas
Joined: Nov 2001
Posts: 807
Likes: 1
From: -
Rear Differential
After towing it can get pretty warm, but definately not hot enought to burn you. Just bearable enough to touch is o.k., but not stove element hot. And filling up to the hole is the proper way to fill it, any more will just leak out any less will cause even more heat. If you are concerned about heat and do alot of towing consider getting a magtec (I think that is who it is) rear diff cover. They have greater fluid capacity and the cover is aluminum. All this transaltes to cooler axle temps.
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Freshman User
Joined: Sep 2002
Posts: 34
Likes: 0
Rear Differential
Thanks for the info rabidranger.
The differential is hot to the touch, but not burning hot. I can rest my hand on it very comfortably. I just wanted to know if I screwed things up. Thanks for your reassurnce.
The differential is hot to the touch, but not burning hot. I can rest my hand on it very comfortably. I just wanted to know if I screwed things up. Thanks for your reassurnce.
Senior User
Joined: Mar 2002
Posts: 208
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From: Palm Coast USA
Rear Differential
I'm not sure what type of truck your driving but 85/140 is a bit on the thick side. Usually for low speed differentials. I would think a 75w-90 would be more "friendly". Just an observation. Good luck.
