Someone already did that. Broke the mounting ears off.
It's not 1970 anymore.
-John

 

No, don't do that, It gets very expensive.

 

This is why I asked, thank you.

 

No, absolutely not!

 

If you've only got one jack just do it a little at a time on each side and raise up your jack stands as you go.

 

Is there a difference in the rear differential from the older models (pre-2015) and latest in regards to being able to jack up the rear differential?

 

I don’t think it matters by year. I will admit I’ve done it with no damage but I agree, you shouldn’t do it. On the older cars from the 60’s and early 70’s the 8 3/4 and Dana housings were pretty stout. Not so much with the newer cars.

 

Yeah - after reading the posts I wondered bc I’ve always done it without issue but I use a wide 6” cup that spreads the load across the entire bottom of the diff. I wouldn’t dare do it with the smaller 3-4” cups.

guess I’m gonna just call myself lucky and use a puck next time. Not a big deal as I put the stands under the control arms anyway.

 

BL (before lift) I used a foot long length of 2 X 10 between the jack and diff. I can see why it's not recommended but If done carefully (assure the floor jack will roll and the car won't move) there is very little danger of damaging the diff.

 

Ive done it once with a 2x between the diff and jack. Had 3 jacks but not one was low profile enough to get under the side. Jacked it up enough til i could get a jack under each side and then jacked it on up with those. I now have two low profile jacks and i can jack up with the pucks both sides at the same time.

 

Glad I read this thread. Now I know not to ever try doing that.

 

I have a diff brace, does that mean I'm safer to jack on the Diff?

I have done this countless times and never had an issue... What breaks or gets damaged? The mounts or the bottom cooling fins?

 

I've been jacking my car twice a year (to change wheels and tires) for 8 years under the diff. I use a soft piece of wood on top of the jack pad. The diff leaves impressions of the fins in the wood. Never had a problem.