Front bearing/seal replacement questions (1 Viewer)

[Zer0zg]

Hey all. I'm in the middle of a front end refresh(wheel bearings, upper and lower ball joints, needle bearings/bushing, drive flanges, brakes), prompted by a noisy balljoint and what I suspected to be a shot needle bearing. I'm mostly done with one side but now that I'm into it I have a few questions:

• Any tips on removing the needle bearings? Some here have mentioned being able to punch them out with a drift, but for me the bearing just came apart leaving me with the outer race pretty well suck in there.
• Should the brass oil bushing just inboard of the needle bearings be a press fit in the hub? it came away with the CV when I removed it, which seemed too loose to me.
• The hub-side oil seal where it meets the CV is starting to come apart. Am I correct that 90304 a0001 is the part number people are using for these? (Searching, it's hard to tell whether this is the one on the hub, or the 'dust shield' on the CV. Tips for removal of these would be welcome as well

Also, removing/installing the ball joints is a total PITA, glad that's over with, at least on one side...

 

[2001LC]

Hey all. I'm in the middle of a front end refresh(wheel bearings, upper and lower ball joints, needle bearings/bushing, drive flanges, brakes), prompted by a noisy balljoint and what I suspected to be a shot needle bearing. I'm mostly done with one side but now that I'm into it I have a few questions:

• Any tips on removing the needle bearings? Some here have mentioned being able to punch them out with a drift, but for me the bearing just came apart leaving me with the outer race pretty well suck in there.
• Should the brass oil bushing just inboard of the needle bearings be a press fit in the hub? it came away with the CV when I removed it, which seemed too loose to me.
• The hub-side oil seal where it meets the CV is starting to come apart. Am I correct that 90304 a0001 is the part number people are using for these? (Searching, it's hard to tell whether this is the one on the hub, or the 'dust shield' on the CV. Tips for removal of these would be welcome as well

Also, removing/installing the ball joints is a total PITA, glad that's over with, at least on one side...

Needle bearings typically come out easy, when tap out with brass dowel form opposite end.
If frozen in, I'd:

• Keep trying to tap out.
• Use a puller.
• Try to peel out from front, use a small sharp chisel first to cut and curl inward. Than grab and rip out.

Use old brass bushing to tap in new. You can press, but really not so tight you need to, There just very snug.

First let us be clear on terms. CV is what Toyota call front drive shaft (FDS). FDS has 2 CV's (inner and outer) and 3 axle (inner, center and outer)
The steering knuckle is held in be upper and lower ball joint.
Axle needle bearing and brass bushing are in back side o knuckle.
Also in back of knuckle is the oil seal 90316-A0001 (old PN # 90316-72001)

In the back of the wheel hub is 90311-70011 SEAL, OIL

R&R ball joints once knuckle off is a piece of cake. I've a video on I'll release some day.

Make sure you fully understand wheel bearing assemble. Do not forget to pack wheel hub cavity with grease.
Make sure to set breakaway preload.
make sure to settle grease by pulling axle out with a puller, before install new snap and setting gap.

 

[2001LC]

 

[2001LC]

 

[2001LC]

These may be helpful. I should have put in first posting for you, sorry. I have changed some procedure over the years, but you'll get the idea.

 

[Zer0zg]

Awesome, this is all very helpful. Thanks for the heads up on the PN for the seal on the back of the knuckle.

I was trying to be as ginger as I could getting the old bearing race out, but I’ll put a bit more effort into it. Thanks.

 

[zhloea]

These may be helpful. I should have put in first posting for you, sorry. I have changed some procedure over the years, but you'll get the idea.

Does this depth of the seal seating looks alright? (seems still a little shallow than original) I already try my best to drive it in, seems it only can go this far, is it ok? Thanks for any recommendation!

 

[2001LC]

I use my brass dowel when in doubt. I'll tap around first inner shelve of seal. I can hear when it's metal to metal. last time I measured it was 4mm on my ruler.

 

[zhloea]

I use my brass dowel when in doubt. I'll tap around first inner shelve of seal. I can hear when it's metal to metal. last time I measured it (should someday before) it was 4mm on my ruler.
View attachment 2621281

I will measure it tomorrow, I think I am very close to 4mm, thanks for this important info.

 

[2001LC]

You can simply click I "like". I'll know than, you read, understand and appreciate.