Volvo XC70/XC90 Replacing Differential Final Drive Bearings

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Update: I have done about 2000km, and everything is still good.
It's a long video, if you have any questions just ask them in the comments.
It might not be the best way of doing things but it worked for me.
Tightening torques: Pinion nut (41mm socket) 250 Nm and then 1 deg increments until rotational torque is 1.1 +- 0.2 Nm (These are from Land Rover manual: www.s80.dk/DIY/rearDiff/misc/... ).
The video contains all the bearing and seal numbers. The kit cost 200€ off Ebay + Haldex filter, oil, and diff oil. Took me a bit over a day including the tool searching and making.
The thing I made for measuring rotational torque looks as it looks just because I only had one type of springs to use so I had to keep adding them to get to the right Nm scale.
TIMESTAMPS
00:00 Removing the axle
02:38 Removing propshaft
07:11 New parts I bought
09:36 Pulling diff apart
13:44 Trip with Volvo 780
15:37 Undoing pinion shaft nut
19:15 Removing bearings
20:12 Putting in new bearings
22:47 Pinion shaft torque

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Опубликовано:

9 июл 2024

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Комментарии : 29

@HeapsofProjects Год назад

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@georgeottinger8168 3 месяца назад

great video. Helped me rebuild the rear diff on my 2011 S60. The main issue I had was getting the new races to seat without them getting jammed in the diff housing. Putting the race in the freezer and heating the diff housing helped to get the race seated squarely and not get cock-eyed in the housing.

@HeapsofProjects 3 месяца назад

Thats good idea, it was tricky to get them in there

@j.rumbleseed Год назад

Very well done, and documented. Helped alot just to make sure I don't buy a damaged used car just to turn around and have to complete that task. But if I do have to do it, Your method was the best, and I would try to source the tools in advance. Great!!!!THanks!!!!

@bertholtappels1081 Год назад

Wonderful video, thanks. I got exactly the same job coming up. I really wasn’t looking forward to doing this, especially without garage or lift. Thanks to your video I can plan at least ahead!

@HeapsofProjects Год назад

You can do it!

@patrickmacnamara9874 8 месяцев назад

Love the 780 content! Great video! I’m about to do this rebuild on my 2011 Xc60.( I just swapped out a supposedly good used carrier/ diff but the replacement is now also noisy..😢) I have an xc60, a P2 xc70, a 2010 xc90 and a 91 780 ( with m90 and 960. 3.31 diff) as well…I’ve parted out 3x 780s and have lots of spare parts if you need any parts, though shipping might be crazy from Canada. Keep up the great vids!

@estevenviveros Год назад

SMART GUY

@Badger13x Год назад

Nice to see you back again, hope all is well with you. How long did it take from start to finish ? Quite a complicated job to carry out .

@HeapsofProjects Год назад

Thanks, I am doing all good! It took bit over a day from start to finish.

@jariljungqvist9671 Год назад

Nice job! I wonder if you have any detailed picture on the tools you made?

@HeapsofProjects Год назад

Hi, I took some photos: photos.app.goo.gl/zWSN6SHdu1AhdMJ6A

@jariljungqvist9671 Год назад

Hello! how many splines do you have in the socket! 23 or 24 splines? just wonder so i cant look for the right parts! regards Jari

@HeapsofProjects Год назад

@@jariljungqvist9671 Hey, it is 23 spline and about 24mm. Right thing is this if you wanna buy it JLR-205-984

@thereclus Год назад

Hi, thx for very informative video. 👍I have a question. I have v40cc awd with haldex 5 and there is a low, bass sound coming out of the rear part but only when car is acceralating. It is especially noticeable when there is a high gear engaged e.g.5th and I accelerate. When I take out haldex fuse there is no such sound-the car accelerates quietly. Did you have similar sounds? Did the repair fix it? :)

@HeapsofProjects Год назад

Yes it sounds like similar issue and it did fix mine.

@ioneltudor8442 4 месяца назад

Hello, I have a question if you are kind, I have a volvo xc 90 2.4 d awd 185 cv geartonic from 2007 and it has a problem with the bearings in the rear differential and I don't know where to find them and what reference they have, please advise how I can fix it and if you know what is needed and where to buy, thank you very much, I live in France

@HeapsofProjects 4 месяца назад

If you go to UK ebay and search "xc90 rear differential bearings" you will find a kit for about 200 pounds

@jamesguralski5156 Год назад

What are the two types of oil needed for that project?! 75 - 90. And?

@HeapsofProjects Год назад

And Volvo (or Febi) haldex oil. It's a special oil so I am not sure of the marking.

@mikeo1616 Год назад

Have you replaced the gear oil in the final drive/rear diff before it made noise?

@HeapsofProjects Год назад

No, I bought the car like that. I did try it before replacing the bearings but made no difference. I think failing bearings are caused by wrong bearing preload when assembled.