R&R of the Dana 44

[chevynut]

Just found this....it may help:

http://www.scribd.com/doc/9375619/Yu...n-Installation

[Bluegrass Trifive]

Just found this....it may help:

http://www.scribd.com/doc/9375619/Yu...n-Installation

https://www.yukongear.com/.../Yukon_...n_Instructions This one on page 10 talks about the non crush version. But just a comment, the C4 44 is a crush version so I wouldn't get too hung up on the workings of the non crush version. I have some pdf documents of the set up for the c4 44 if I can figure out how to upload here I'll post them.

[chevynut]

I think I get it now....the crush sleeve doesn't affect pinion depth. It's between the two bearings and the shims are between the pinion gear and the inner bearing, so it doesn't move when the crush sleeve crushes. I'm learning.

[Bluegrass Trifive]

I think I get it now....the crush sleeve doesn't affect pinion depth. It's between the two bearings and the shims are between the pinion gear and the inner bearing, so it doesn't move when the crush sleeve crushes. I'm learning.

You're catching on quickly! Finally it's all pretty simple once you get them apart. Just need some special tools and uncommon parts sometimes.

[chevynut]

Hey Bluegrass, have you gotten anywhere on that D44 rebuild? I looked through my stuff and found out I have a set of new Timken pinion bearings and races, a new pinion seal, crush sleeve, ring gear bolts, shim pack, pinion yoke nut and washer. I just ordered new Timken carrier side bearings and races.

My diff has been gone through at some point because it has 4.11 gears in it. I don't know how many miles are on it nor whether they replaced the bearings at that time. So I guess the safe way is to replace them now. I will replace the side yoke seals but I don't know if I need to replace the axle needle bearings or not.

How do you tell if the clutches are any good? A guy could just replace everything in there but I wonder if it's really necessary.

Did you get the snap rings off of the side yokes? I broke my snap ring plier tip inserts trying to do that.

[NickP]

How do you tell if the clutches are any good? A guy could just replace everything in there but I wonder if it's really necessary.

Did you get the snap rings off of the side yokes? I broke my snap ring plier tip inserts trying to do that.

What, if any, detail does the GM manual have regarding this great question? I have a full set but have never looked and now, they're in a storage container way in the back with all of the creepy crawlers.

[markm]

What, if any, detail does the GM manual have regarding this great question? I have a full set but have never looked and now, they're in a storage container way in the back with all of the creepy crawlers.

Pretty good info in the early manuals, I have used my 70 pass. and 72 Truck manuals on numerous diff. rebuilds.

[chevynut]

Here's a Spicer Dana 44 IRS manual:

http://www2.dana.com/pdf/5323.pdf

For clutch packs it says "if any one member of either stack shows excessive wear or scoring the complete stack is to be replaced on both sides."

They don't tell you what "excessive wear" is. I decided to just replace them and bought a brand new set of Spicer clutches off eBay for $56 .

[NickP]

Hence my question regarding the GM Manual specific to your issue/question. As I recall, relative to other wear dimensions, the manuals are very specific. If need be, I can venture into the depth of my storage and get he manual for a reference guide.

[chevynut]

Nick, the manual I linked above simply says to replace all the bearings regardless, and other parts that are excessively worn. It's a Spicer manual, not GM. I didn't know GM had any manuals for this stuff. At this point I have everything I need to rebuild the differential with new bearings, clutch plates, seals, etc. except side yoke bearings and seals. I will replace the seals, not sure about the bearings until I disassemble it.