3rd Gen Ram Tech 2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Rear Diff ID help for friend

Thread Tools
 
Search this Thread
 
  #1  
Old 06-17-2009, 11:09 PM
HavenSOV's Avatar
HavenSOV
HavenSOV is offline
Registered User
Thread Starter
Join Date: Jun 2009
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Question Rear Diff ID help for friend

Hello all this is my first post here and I need some help for a friend. Now bare with me, as I am a Jeeper (ok ok, enough laughing) but I know more about basic mechanics then my friend does so hes asked for my help.

My friend has an 02 ram 1500 with tow package. He has been the only owner.

This week he broke his rear end. (Sorry for the cell phone images)


From what I can tell without pulling apart his rear axle, he broke the pinion gear shaft and probably blew the seal as well. Now he didn't drive it after it broke and immediately called the tow truck.

Right now we are looking at just swapping out the axle for a another used one or repairing this one if he hasn't done any damage to the axle housing.

So the question...

He says that he thinks that its a Dana 44 with 4.10 gears...

From looking around here I see that its probably a Chrysler 9.25 rear with 3.92 gears.

I went crawling around under it looking for any ID tags on the shafts or Diff but found none. Looks the the wonderful salt from up here in MI have removed any sign of them. So if those of you with more Dodge knowledge would please assist me in IDing this rear I would be in your debt.



And did the 1500 ever come with 4.10 gears from the dealership?

Thanks so much for your help.
 
  #2  
Old 06-17-2009, 11:17 PM
98cherryram's Avatar
98cherryram
98cherryram is offline
Record Breaker
Join Date: Mar 2008
Location: Oregon
Posts: 1,488
Likes: 0
Received 0 Likes on 0 Posts
Default

the 2002s had the 3:55 and 3:92 on their gears, the 1994 through 2001 off roads had 4:10s on them. It isnt a dana 40, thats what the front axle on the 94 to 01 with 4wd had, but the rears on the 1500 were always the chrysler 9.25. Thats about the exact same thing that happened with my 2nd gen dodge, its about 500 for a used axle, and near to 1000 to fix it, but the fix is more reliable.
 
  #3  
Old 06-17-2009, 11:21 PM
dirtydog's Avatar
dirtydog
dirtydog is offline
Moderate User
Dodge Forum Moderator
Join Date: Oct 2008
Location: Albany, NY
Posts: 17,003
Likes: 0
Received 18 Likes on 9 Posts
Default

Have him install an aftermarket locker back there. You'll never have that problem again. Stock LSD prob broke a retaining clip as usual. I'm going to install a trutrac hopefully in the near future.

Ohh, but yep. 9.25" diff.
 
  #4  
Old 06-17-2009, 11:23 PM
98cherryram's Avatar
98cherryram
98cherryram is offline
Record Breaker
Join Date: Mar 2008
Location: Oregon
Posts: 1,488
Likes: 0
Received 0 Likes on 0 Posts
Default

No, hes right, its the pinion, Its the exact thing that happened to my truck that forced me to get this new one, although I am quite happy with the decision to get a new truck!! And he might not even have the lsd in there, my old differential didnt have the lsd
 
  #5  
Old 06-17-2009, 11:39 PM
dirtydog's Avatar
dirtydog
dirtydog is offline
Moderate User
Dodge Forum Moderator
Join Date: Oct 2008
Location: Albany, NY
Posts: 17,003
Likes: 0
Received 18 Likes on 9 Posts
Default

ohh. i waas thinkin the metal chunks are what caused it. That could be a good thing as long as the bearing channels aren't ground all up???
 
  #6  
Old 06-17-2009, 11:51 PM
all of 75's Avatar
all of 75
all of 75 is offline
Veteran
Join Date: May 2009
Location: Strawberry Fields
Posts: 410
Likes: 0
Received 0 Likes on 0 Posts
Default

Look inside his glovebox; there is a sticker there that says what type of diff. it is as well as the gear ratio. And as others said, go ahead and upgrade when you guys replace that rear end.
 
  #7  
Old 06-18-2009, 07:53 AM
BEAR's Avatar
BEAR
BEAR is offline
Record Breaker
Join Date: Apr 2008
Location: REDNECK, USA
Posts: 1,524
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by all of 75
Look inside his glovebox; there is a sticker there that says what type of diff. it is as well as the gear ratio. And as others said, go ahead and upgrade when you guys replace that rear end.
I agree, make a repair a mod!
 
  #8  
Old 06-18-2009, 10:09 AM
HavenSOV's Avatar
HavenSOV
HavenSOV is offline
Registered User
Thread Starter
Join Date: Jun 2009
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you all for your posts. It really will help in getting him all fixed up.

But I think that some of this issue might be in that he doesn't know the year. He did say that it had an off road package...

Originally Posted by 98cherryram
the 2002s had the 3:55 and 3:92 on their gears, the 1994 through 2001 off roads had 4:10s on them.
By this statement, it could be an 01 with the offroad and have the 4.10 gears...

Either way I will be calling him shortly and telling him to look int he glove box for the id tag.

As for upgrading, he really doesn't have the money to fix it right now so more to upgrade is out. Now if he gets the used axle under his Ram, then i just might see about taking the broken on as payment for the swap and see about fabbing it up under the rear of my XJ .

Thanks again, I will let you know how it goes.
 
  #9  
Old 06-18-2009, 11:20 AM
MontanaRAM's Avatar
MontanaRAM
MontanaRAM is offline
Captain
Join Date: Apr 2009
Location: Bozeman
Posts: 609
Likes: 0
Received 0 Likes on 0 Posts
Default

2001s were the old body style, so it would have to be an '02 or up.
 
  #10  
Old 07-29-2009, 10:07 AM
HavenSOV's Avatar
HavenSOV
HavenSOV is offline
Registered User
Thread Starter
Join Date: Jun 2009
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you all for your help. Ended up getting the rear out for under the truck and taking to a local race care mechanic to be rebuilt. Its all back together now and working great!
 



Quick Reply: Rear Diff ID help for friend



All times are GMT -4. The time now is 08:21 AM.