output shaft bearing pics

[N2ostealth]

Here are some pics of my tranny after the output shaft seal failed again.

Notice what looks to be a bearing race trying to come out of the tranny.

let me know what you think.

[phantomrt]

Weird. For starters, that output shaft seal is intended to be installed from the inside of the transmission out, which means the transmission has to come apart to install that #^%^%@ing seal.

I imagine that if you wiggle that output shaft, there is a LOT of play in it. Is that true? That bearing has to be totally shot in order to be able to do this...

[N2ostealth]

no play whatsoever.

I was under the impression the seal went in from the outside, in this case it doesnt matter cause I had the bellhousing off when this seal was installed.

the 300m shaft was installed not too long ago....maybe it wasnt installed correctly???

[N2ostealth]

well if anyone is listening:



the needle bearing in the splined sleeve that slides into the vcu with the gear that drives the front diff ,got pushed out and then pushed the seal out.

the two taper bearings on that sleeve are suspect also;
the big gear on the front diff shows signs of interference with the bottom bearing of the sleeve.

it would appear that even though I have the plate welded in the bellhousing,
it seems the splined sleeve and gear are being pushed to the bell housing side of the trans.

can I mess with the shim thicknesses to maybe adjust for the torque towards the bell housing????

this next pic shows the force of the gear straight up, so the bearing on the bottom hits the bottom of the gear on the left.

[N2ostealth]

more pics:

this is upside down to showhow the splined sleeve slides onto the output shaft and into the vcu:

[N2ostealth]

soooooo...........
anyone have any ideas on what to do to this thing while its apart????

has anyone pushed that needle bearing out of the case before?????

the front output shaft was pushed (up in the pictures) so that the bearing made contact with the ring gear. that ever happen to anyone else?????

there are people on here right?

[JackM]

The pic below shows a bearing installed correctly. Note the clip that prevents it from moving out and damaging your seal.



You can't look at the tapered bearings and assume they are hitting something without the case together. I see no witness marks in your pics of those bearings hitting anything.

The seal can be installed in your case from the outside as yours doesn't have a lip on the outside like some of the others do.

If it were my car, I would just pull that needle bearing out and run the tranny without it. That bearing is totally useless when the t-case is in the car as the t-case coupler has tapered bearings in it to hold the shaft. The only time the needle bearing is in use is to hold the output shaft in place better when the t-case is off or if the t-case coupler/bearings have a failure of some kind.

Jack

[N2ostealth]

Thanks Jack!!

Thats the kind of answer I was lookin for!!

I know its impossible to tell from the pictures, but the mid case side edge of the ring gear for the front diff and the front output shaft mid case side bearing--both have signs of interference at one time or another.

When I slid the front OS out of the vcu--that bearing came right of by hand!!!

At this point I have three new bearings that I want to put on.


Basically all the bearings on the front OS.

I have :
2x 32009xm90km1 timken taper roller bearings
1x hk2520


I did assume the two taper bearings on the front OS were the same,
so the only thing Im not sure on now is preload.

I read the manual but am not sure

do you measure the solder--then add the preload to that to get the shim thickness???

Can it be easily explained??

any help is really appreciated!!

[chargerx3]

hmm...ive put my OS seal in from the outside. then again it was an 18 spline. still works great today.

[Bruhaba]

Getrag does not put extra bearings in transmissions for fun. Bearings cost money. There are many applications where the loading may be indeterminant or theoretically zero and something is put there because there is spline clearance, tolerance stack up and shaft whip/bending that are in many cases difficult to sum up. From my experience, manufacturers use a bushing (cheapest) when they can and a needle bearing when a bushing won't hold up either because of lubrication or load conditions.

My two cents. No disrespect intended.

Originally Posted by JackM

The pic below shows a bearing installed correctly. Note the clip that prevents it from moving out and damaging your seal.



You can't look at the tapered bearings and assume they are hitting something without the case together. I see no witness marks in your pics of those bearings hitting anything.

The seal can be installed in your case from the outside as yours doesn't have a lip on the outside like some of the others do.

If it were my car, I would just pull that needle bearing out and run the tranny without it. That bearing is totally useless when the t-case is in the car as the t-case coupler has tapered bearings in it to hold the shaft. The only time the needle bearing is in use is to hold the output shaft in place better when the t-case is off or if the t-case coupler/bearings have a failure of some kind.

Jack