Have you tried taking the old ones to a bearing shop and see if they can cross reference to another number? I have done this with wheel bearing in the pastJ10dan wrote: ↑Tue Sep 21, 2021 4:40 pm Sorry about the multiple posts on the same subject, I did not see (like a dummy) that they had posted to the next page, they were supposedto all go into one post. I don't know how to delete the posts only edit them. So again I apologize to all.
I still really need some help with this one. As couple of you guys have rebuilt these cases before and used the Timken 6206-Z. I just don't get it, they are to small by 50 thou
Ok in the middle of the full rebuild.
Ok so here is one that has me really stumped.
Local bearing supply actually had the books for the QuadraTrac output shaft bearings, they listed them as Timken 6206-Z, could not belive after looking through 4 old books they found it, this is before I pulled the number from my phone!
I had seen in a post that was the part Number fulsizjeep used as well.
Well tried to put them in today and they don't fit!
The outer diameter is to small, they (Timken 6206-Z) are 2.44 od, the original Federals outs are 2.49! What the heck is going on here! Out by 50 thou!
Please any help would be greatly appreciated!
I seem to have gotten out of sequence in reading/replying to posts. I was referring to the sprockets.
bigun wrote: ↑Wed Sep 22, 2021 4:26 pmHave you tried taking the old ones to a bearing shop and see if they can cross reference to another number? I have done this with wheel bearing in the pastJ10dan wrote: ↑Tue Sep 21, 2021 4:40 pm Sorry about the multiple posts on the same subject, I did not see (like a dummy) that they had posted to the next page, they were supposedto all go into one post. I don't know how to delete the posts only edit them. So again I apologize to all.
I still really need some help with this one. As couple of you guys have rebuilt these cases before and used the Timken 6206-Z. I just don't get it, they are to small by 50 thou
Ok in the middle of the full rebuild.
Ok so here is one that has me really stumped.
Local bearing supply actually had the books for the QuadraTrac output shaft bearings, they listed them as Timken 6206-Z, could not belive after looking through 4 old books they found it, this is before I pulled the number from my phone!
I had seen in a post that was the part Number fulsizjeep used as well.
Well tried to put them in today and they don't fit!
The outer diameter is to small, they (Timken 6206-Z) are 2.44 od, the original Federals outs are 2.49! What the heck is going on here! Out by 50 thou!
Please any help would be greatly appreciated!
Yes both of us cannot belive it either, as I mentioned the supply store here, who has been around forever, had the old books that listed that Timken 6206-Z as the bearing. It's 2.44 od! You can see here the original Federals are 2.49! We measured the donnar case as well, whitch is 5 years older same size!fulsizjeep wrote: ↑Fri Sep 24, 2021 1:33 pm Interesting development for sure on the output bearings. That bearing p/n used to fit just right. I wish I had stocked a few more back in the day. Oye
Now, try and find the bearing that goes in the T400-QT adapter. I did manage to pick up 2 new spares a few years ago.
Here is a NOS adapter bearing I put in my wife's Wag 9 years ago.
Try contacting Cascade 4WD on those output bearings. Might get lucky.
J10dan wrote: ↑Sat Sep 25, 2021 8:55 amYes both of us cannot belive it either, as I mentioned the supply store here, who has been around forever, had the old books that listed that Timken 6206-Z as the bearing. It's 2.44 od! You can see here the original Federals are 2.49! We measured the donnar case as well, whitch is 5 years older same size!fulsizjeep wrote: ↑Fri Sep 24, 2021 1:33 pm Interesting development for sure on the output bearings. That bearing p/n used to fit just right. I wish I had stocked a few more back in the day. Oye
Now, try and find the bearing that goes in the T400-QT adapter. I did manage to pick up 2 new spares a few years ago.
Here is a NOS adapter bearing I put in my wife's Wag 9 years ago.
Try contacting Cascade 4WD on those output bearings. Might get lucky.
As far as the T 400 adapter bearing goes Mines in relatively good shape. The donnar case one is shot. Yet I figured finding that one was out. If I could find one, of course I'd put it in. You don't want to part with one of those extras do you lol!
I will try Cascade 4WD and see if by chance they have the output shaft bearings and maybe the adapter bearing as well!
I'll let you know, thanks for the info once again!
Dan
Pair O J10 wrote: ↑Wed Oct 20, 2021 2:15 pm I'm not aware of any spec printed for the side gears or pinion gears pertaining to running lash. I do know if the cones wear too much and close up the lash the gears will dig into the brake cones and will destroy the pinion shaft and case. If you assemble the sprocket and get a good torque bias test you should run it. You say your case is good, if there are any high spots the brake cones will rock side to side. You can have the sprocket resurfaced as I have posted before, any good machine shop can dress it up for you should the surface require it you should not clean it up factory fresh, to do so will probably render it useless. Just have them clean up any high spots, You should note there is "point" 5 degree difference between the brake cone and the sprocket. One is 12 degrees the other is 12.5 can't remember which is which, measure the angle on your brake cones and you'll have the answer.
Pair O J10 wrote: ↑Thu Oct 21, 2021 2:02 pm I knew torque bias had nothing to do with your problem. If your sprockets are that 'unworn" may I ask why the need for new cones? I mean you may indeed have a unicorn there, seems the original cones would be as untouched as the sprocket. Interested in reading about the outcome for sure, please do keep us posted.
They(Novak) wrote this:Pair O J10 wrote: ↑Fri Oct 22, 2021 9:23 am That is big...I'm sure they will end up with a better product in the end themselves. I had always wondered "If" the factory used some kind of "lapping" procedure to seat the cones in the sprocket. I wish Borg Warner had some old prints on the sprockets and in fact they may have, when I was a Quality Insurance Inspector for a major Jet Engine manufacturer they had prints in their library that were very old indeed. I wonder if anyone has ever inquired..
Hello FSJN, I have been driving a QT CJ7 since 1990 and I mostly post over on the JeepForum and lurk around FSJN. I am rebuilding a QT and decided to make a few very amateur videos with as much detail as I can muster to document the process so I can look back on the next rebuild and remember what I did. Inspired by Jubilee Jeep's excellent QT documentation, which I have used extensively over the years, I decided to start a YouTube channel to share QT information in that format and hopefully help other QT owners. In my deep dive to find replacement parts for the videos(and on-going rebuild), I found what appears to be the correct T400-QT adapter bearing (35mm x 90mm x 20mm with snap ring) at Advance Adapters. So, I ordered a couple and will install soon, but they seem identical to the original bearing.Now, try and find the bearing that goes in the T400-QT adapter. I did manage to pick up 2 new spares a few years ago.
Thanks for posting. Do you have a link to your channel? I would be interested in watching that, even though I have only been around the transfer case, never owned one.Maladroit wrote: ↑Mon Nov 21, 2022 7:10 amHello FSJN, I have been driving a QT CJ7 since 1990 and I mostly post over on the JeepForum and lurk around FSJN. I am rebuilding a QT and decided to make a few very amateur videos with as much detail as I can muster to document the process so I can look back on the next rebuild and remember what I did. Inspired by Jubilee Jeep's excellent QT documentation, which I have used extensively over the years, I decided to start a YouTube channel to share QT information in that format and hopefully help other QT owners. In my deep dive to find replacement parts for the videos(and on-going rebuild), I found what appears to be the correct T400-QT adapter bearing (35mm x 90mm x 20mm with snap ring) at Advance Adapters. So, I ordered a couple and will install soon, but they seem identical to the original bearing.Now, try and find the bearing that goes in the T400-QT adapter. I did manage to pick up 2 new spares a few years ago.
Anyway, in case this is useful, I'll put the link below. If I am somehow mistaken or if this is common knowledge, please correct me.
https://www.advanceadapters.com/5194