Needles in Transfer Case

[theglobb]

My dad reached into the transfercase on our 1965 FJ40 and found all of this inside. Assuming a bearing is just shredded apart on the inside but does anyone have any other info/advice/experiences with this, such as what it is or how do we fix it? Any help is appreciated.

 

[reddingcruiser]

Well, I would say a rebuild is definitely on the horizon. If those were in the main body of the t-case my guess is they are from the idler gear, but I'm at loss at to how they got out.

 

[theglobb]

Well, I would say a rebuild is definitely on the horizon. If those were in the main body of the t-case my guess is they are from the idler gear, but I'm at loss at to how they got out.

It came out of where

Well, I would say a rebuild is definitely on the horizon. If those were in the main body of the t-case my guess is they are from the idler gear, but I'm at loss at to how they got out.

Would it change anything if it came out of the section of transfer case where vacuum module that shifts between 2WD and 4WD is attached?
(There's a photo of what I'm talking about)

 

[reddingcruiser]

Certainly would. Those are the bearings that ride in the front of the main shaft. Somebody had to have removed the front output shaft for them to have fallen out, but they were shot anyway since it's a caged bearing.

 

[73FJ40]

@theglobb

Reddingcruiser may be correct. Based upon your picture of the front nose, there is a needle bearing in there as well.

Either way, you'll likely have to do an "exploratory" to determine the extent of the damage.

Fortunately, if you and your Dad are mechanically inclined, a member here named Coolerman has an illustrated "how-to" guide
on rebuilding the transfer case.

go to !Oy: Coolermans 1971 FJ40 Build and choose the page, "Drive Train: rebuilding the 3sp transfer case"

Page 1 fig. 9 and fig. 14 show the needle bearing inside the housing you show in your picture. Page 2 fig. 5 shows you how difficult that bearing is to remove.

Page 2 fig. 6 shows the idler gear needle bearings that Reddingcruiser mentioned.

 

[theglobb]

Certainly would. Those are the bearings that ride in the front of the main shaft. Somebody had to have removed the front output shaft for them to have fallen out, but they were shot anyway since it's a caged bearing.

Thank you! This helps alottt

 

[theglobb]

@theglobb

Reddingcruiser may be correct. Based upon your picture of the front nose, there is a needle bearing in there as well.

Either way, you'll likely have to do an "exploratory" to determine the extent of the damage.

Fortunately, if you and your Dad are mechanically inclined, a member here named Coolerman has an illustrated "how-to" guide
on rebuilding the transfer case.

go to !Oy: Coolermans 1971 FJ40 Build and choose the page, "Drive Train: rebuilding the 3sp transfer case"

Page 1 fig. 9 and fig. 14 show the needle bearing inside the housing you show in your picture. Page 2 fig. 5 shows you how difficult that bearing is to remove.

Page 2 fig. 6 shows the idler gear needle bearings that Reddingcruiser mentioned.

Wow thanks alot of info, I really appreciate all of it. We will definitely look into this and that thread. Many thanks

 

[73FJ40]

@theglobb

Wow thanks alot of info, I really appreciate all of it. We will definitely look into this and that thread. Many thanks

You are welcome.

Please report back on what you find.

 

[theglobb]

@theglobb

You are welcome.

Please report back on what you find.

Definitely will

 

[theglobb]

So we removed the extension housing and it looks like a needle bearing is 100% destructed. We have an old parts manual from 1967 and it looks like part AQ #90364-17010. See photos below. Are we on the right track? Simple as replacing that bearing? Any way to confirm the part # ? FJ wisdom is requested.

 

[reddingcruiser]

That's the one. If this is your first time with this bearing I would order two.

It looks like the remains of the shell of the old bearings is still in the main shaft, so you'll need to get that out first. The bearing is a snug fit and normally a press with an install tool is the easiest way to get it in. Don't try to tap directly on the shell with a hammer, it's easily damaged. Freezing the bearing prior to assembly makes it slightly easier.

 

[theglobb]

That's the one. If this is your first time with this bearing I would order two.

It looks like the remains of the shell of the old bearings is still in the main shaft, so you'll need to get that out first. The bearing is a snug fit and normally a press with an install tool is the easiest way to get it in. Don't try to tap directly on the shell with a hammer, it's easily damaged. Freezing the bearing prior to assembly makes it slightly easier.

That's great to know, do you have any suggestions on how to get that remaining part of the bearing out? Thank you.

 

[reddingcruiser]

It's a PITA, even when they are intact. A combination of a Dremel with a small burr and a cape chisel, and patience, will get it out. I grind through the shell along the length in two or three places then use a cape chisel to collapse it inward.