Looking for “how to” on replacing rear wheel bearing

After I owned my care for a few years his showed up. It was the secondary transmission shaft.
It was not noticable to anyone except me.

May not be a wheel bearing

 

I had a groaning sound on the 90 348 I owned. Turned out to be the rear wheel bearing (as I suspected). I let a very experienced indie do the work (one who has maintained Ferrari Challenge race cars for many years). He said it was one of the most difficult jobs he's done on a Ferrari. Hopefully mine was an exception and yours will be easy.

 

Replace the whole hub. Easier.

 

If this is what you need, Ricambi has new ones for $1,600. each.

https://www.ricambiamerica.com/157900-hub-r.html


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But here is what I paid during the car's 30k service. Notice, just the bearings. Disregard the 105 and 840 totals since other work was done as well.


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The Tech said that the ring nut was a bear to remove. Him and two others spent hours on it. Good thing he didn't charge me for each and every one of them.

Oh, and I hate to add, but consider doing both sides as the original parts are equal (quality, age, usage, etc.).

 

In some later 348 and all 355, the bearings are not replaceable. You have to replace the whole hub. Why does the "ring nut" have to be messed with?

 

Yes it is an option.

I have replaced both rear wheel bearings on my 348, which is a ‘90 as well. It’s easiest to get the bearing/s out with the hub completely off. Once you have the old bearing out take it to a good bearing supplier and have them match it up. You’ll need a ring nut socket to get the inner flange (where the cv joint attaches) off the outer flange (where the rotor & wheel mount).

 

If it was that one it’s about 100 times easier to replace. Being that it’s a 90 model in pretty sure it is not the sealed bearing type and is unfortunately to old school pressed in bearing type.


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On the 90 I owned, the ring nut was completely seized and had to be destroyed for removal.

 

Item 35

https://www.ricambiamerica.com/car-diagrams/ferrari/v6-v8/348-group/348-1989-1992/rear-suspension-shock-absorber-and-brake-disc-valid-from-car-ass-nr-8799.html




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Yeah, missed the "90" in the OP's first post so this item probably shouldn't be mentioned at all. And "replacing the whole hub" threw me off...

 

Yes!!!!

You can do it!

Post #231 here, https://www.ferrarichat.com/forum/threads/348-engine-out-major.438576/page-10, I remove the CV joint/half shaft from the flange.

Starting on post #571 here, https://www.ferrarichat.com/forum/threads/348-engine-out-major.438576/page-23, I show how I remove the hub from the suspension.

Just take your time, and take plenty of pictures.

You
CAN
Do
It
!!!

 

I bought a used low mile 550 hub for my 355 for $300

 

You need to replace the boot immediately. If you don't water / dirt will get into the grease and destroy the CV joint. Plus, as you drive you will sling grease all over the place.