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-   -   Dana 44a and 35 bearing question (http://www.jeepforum.com/forum/f13/dana-44a-35-bearing-question-2037225/)

evan1395 01-25-2014 11:04 PM

Dana 44a and 35 bearing question
 
So I read somewhere that D44a and D35 axle shaft bearings and seals are the same?

Timken #5707 for the bearings
Timken #4857 for the seals

Is this all I need for a bearing job in the Dana 44a? Do the bearings come with races ?

Uniblurb 01-26-2014 12:01 AM

Yep, exact same bearings/seals for the 44a and 35c while you hit the numbers for the Timkens on the head!

http://www.jeepsunlimited.com/forums...-Wheel-Bearing

As far as the write-up goes I'd just use a regular high quality gear oil rather than the pricey Royal Purple. I'm running Royal Purple in my 35c and really don't see an advantage while it also doesn't seem to quiet any bearing noises. I'll probably just change it out next service interval for regular.

evan1395 01-26-2014 01:05 AM

So just regular 75W-90? My D44A is non limited slip.
All i need is a slide hammer and bearing puller eh?

Uniblurb 01-26-2014 03:30 AM

Quote:

Originally Posted by evan1395 (Post 19758025)
So just regular 75W-90? My D44A is non limited slip.
All i need is a slide hammer and bearing puller eh?

80W90 is the spec for the 44a w/o LSD. For HD use or tow package use 75W-140 full synthetic. Use a gear oil grade which has MIL-2105c and/or API GL5 spec and capacity is 4.75 pts. So you should buy 3 qts and will have a little more than 1/2 left over.

Yeah, once you put the slide hammer end in the axle tube it will remove both the bearing and seal at the same time. Make sure you use the adapter end which is just a little narrower than the axle inner-diameter so it will fit flat against the back of the bearing. Both Advance and Autozone has loaner slide hammer/bearing remover kits here so you should check locally.

The cross pin bolt head is a special size where you're supposed to use a e8 torx socket to remove it. But I found a 12-pt 1/4" box-end wrench worked fine so I returned the e8 torx socket I bought.

Most don't use any gasket when re-installing the cover and I just used ultra black RTV. But Permatex also makes a gasket maker just for differential covers as seen here. It's best if you heat up the mating surface with a heat gun/hair dryer to bring the oil out and then wipe it down with alcohol. If you want remove the gasket again believe it's NAPA which sells a re-useable gasket where you aren't supposed to need any RTV.

Not sure if the 44a axle is deeper but I found the 4857 weird seal that Timken now makes wouldn't fit all the way in on my 35c. Would have rather had a lip on mine but the Timken 8660s worked fine. Good luck!

Note on the photo of the below Timken 4857 how the rubber seal is wider than the actual metal itself. This is the reason it would not fit in tight and was afraid after assembly it would loosen/or pop out. Thread w/text comparing the 3 seals (OE, 4857, 8660s) is in the 2nd link.

http://www.jeepforum.com/forum/attac...-10-7-2012.jpg

http://www.jeepforum.com/forum/f13/d...l#post14268978

evan1395 01-26-2014 11:15 AM

So you would indeed reccomend the 8660's for the D44a over the 4857. I mean if the 35c and 44a are supposed to take the same seal/bearing setup, then I suppose the 4857 wouldnt fit on the 44 as well as the 8660 did on your 35c?

Uniblurb 01-26-2014 11:40 AM

Yes, I'd go with the 8660s over the 4857 for your 44a. Even though ratmonkey put me in my place in the below post, and rightfully so, I have a deep respect for his vast Jeep knowledge. Bless his soul...

http://www.jeepforum.com/forum/f13/d...l#post14300191

evan1395 01-26-2014 02:16 PM

2 Attachment(s)
Appreciate it uniblurb.
Meanwhile, in my down time between work and taking care of my 8 month old daughter while waiting for next paycheck to roll around....I get to catch up on things like this :D
This thing was gross, almost an 1/8" of grime on the tip of the IAC (I dont know how it didnt throw an engine code). The raised lettering on the topside of the TB flange was covered in grime. After removing all the IAC, TPS, MAF and douching this whole thing out...it is running gorgeous.

evan1395 01-26-2014 02:20 PM

Was this the seal you are speaking of Uniblurb? It says its for a steering gear worm shaft? : /

http://www.rockauto.com/catalog/moreinfo.php?pk=1839142

PolkaPower 01-26-2014 02:44 PM

This is a good write up. http://www.jeepsunlimited.com/forums...-Wheel-Bearing

Tell the parts store what part number you want or they will get confused and give you the wrong part if you tell them it's for a D44a.

evan1395 01-26-2014 03:05 PM

Yeah thats what I heard. However im confused if this is the right part # for the seal?

PolkaPower 01-26-2014 03:34 PM

It's the part number I used. Here is my frustrating debacle with them. http://www.jeepforum.com/forum/f13/a...-part-1263351/

evan1395 01-26-2014 06:49 PM

Ok, but whats up with the description for it on rock auto? Saying its a steering worm gear seal?
As long as I KNOW for sure its the right one, im fine with it.

FastSUV 01-26-2014 07:06 PM

Quote:

Originally Posted by Uniblurb (Post 19757457)
Yep, exact same bearings/seals for the 44a and 35c while you hit the numbers for the Timkens on the head!

http://www.jeepsunlimited.com/forums...-Wheel-Bearing

As far as the write-up goes I'd just use a regular high quality gear oil rather than the pricey Royal Purple. I'm running Royal Purple in my 35c and really don't see an advantage while it also doesn't seem to quiet any bearing noises. I'll probably just change it out next service interval for regular.

Since I made that writeup, I switched off of Royal Purple...I think it is a fine gear oil, but as much as I been and plan to be in the rear ends of my Jeeps, it is just too costly if it can't be run for a full interval.

Quote:

Originally Posted by PolkaPower (Post 19772785)
It's the part number I used. Here is my frustrating debacle with them. http://www.jeepforum.com/forum/f13/a...-part-1263351/

Yeah I even made an official report to O'Reilly and and unofficial to an Autozone store manager back in 2008 that their electronic parts catalogs were 100% wrong for the 44a bearings...the 44a is the 44HD but they just list the bearing wrong. I wonder how many shops have had to send a delivery driver back with a factory bearing part number just to get the right bearings from one of these places. I recall NAPA having the correct bearings but them costing a ton so I figured out I could get them from Autozone once I knew the actual part number....The NAPA and the Timken were both just re-boxed OEM tourington bearings FYI.

evan1395 01-26-2014 08:09 PM

So the 8660 seals and the 5707 timken bearing for the Dana 44a is the correct setup?

evan1395 01-26-2014 08:15 PM

Im checking the dimensions between seal #8660 and #4857 and they are waaaaay off from eachother.

So here is Seal #8660
http://www.rockauto.com/catalog/moreinfo.php?pk=1839142

And here is Seal #4857
http://www.rockauto.com/catalog/moreinfo.php?pk=1118975


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