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Discussion Starter #1
How hard is it to remove the rear differential? I haven't been able to find anything specific about doing it on a Titan, but it seems it usually requires some special tools. I have a clicking in the diff that sounds like it is up by the pinion. I try to do everything myself, but I'm worried this job might be too much.

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did you check the U joint first?
if you`ve never set up a differential before, do not attempt it, yes you do need dial indicators and special tools to set it up properly.

it would help to tell the forum what year, how many miles so someone can help out...
 

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Discussion Starter #3
It's a 2005 SE with 133k. I used a big screwdriver as a stethoscope and the noise is definitely louder by the pinion than by the cover. I don't feel any play in the u-joint. Fluid level is good, but I haven't cracked it open yet.

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If you don't have to mess with the pinion it should be a pretty straight forward job.
Measure the backlash and write it down first, then remove both axles. With axles out you can remove the 2 bearing caps and it should come right out. MAKE SURE YOU MARK THE CAPS RIGHT LEFT UP AND DOWN. They must go back exactly the way they came off.
There's a lot of info online for doing this job, it's not hard, just take your time and do your homework.
 

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Discussion Starter #5
Found the problem. The shaft that holds the spider gears is broke on one side. There seems to be enough of the shaft to still keep the gears secure. The broken piece at the end is loose and move in and out, hitting the ring gear. Unfortunately, it doesn't look like it can be removed while the ring gear is in place, plus, I'm not sure if I can even find a replacement.
 

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Found the problem. The shaft that holds the spider gears is broke on one side. There seems to be enough of the shaft to still keep the gears secure. The broken piece at the end is loose and move in and out, hitting the ring gear. Unfortunately, it doesn't look like it can be removed while the ring gear is in place, plus, I'm not sure if I can even find a replacement.
where are you from?
 

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Discussion Starter #9
I have a 4wd with tow package, not sure how compatible that is with yours, still trying to figure out the Titan, only had it about 2 months
 

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you have an e locker or open wheel?
most people when they have a rear issue step up to a tru trac diff or other diff type bc of the issues with the titan.
I have a spartan locker, and my truck has towing package. I think the difference is the spring perches are slightly lower than the Pro4x.

you would have to do some reading. and see if your brake assy will bolt up to the 2013 set up... The 08+ axles are better.
 

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I just saw your pic, you have an open wheeler. That is so common an issue with these rears.

my rear has the 2.94 ratio.
 

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Discussion Starter #12
you have an e locker or open wheel?
most people when they have a rear issue step up to a tru trac diff or other diff type bc of the issues with the titan.
I have a spartan locker, and my truck has towing package. I think the difference is the spring perches are slightly lower than the Pro4x.

you would have to do some reading. and see if your brake assy will bolt up to the 2013 set up... The 08+ axles are better.
I do not have a Pro4x.
 

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Discussion Starter #13
you have an e locker or open wheel?
most people when they have a rear issue step up to a tru trac diff or other diff type bc of the issues with the titan.
I have a spartan locker, and my truck has towing package. I think the difference is the spring perches are slightly lower than the Pro4x.

you would have to do some reading. and see if your brake assy will bolt up to the 2013 set up... The 08+ axles are better.
I just saw your pic, you have an open wheeler. That is so common an issue with these rears.

my rear has the 2.94 ratio.
I thought the towing package came with a 3.36 ratio? I do not have a sticker on my differential anymore
 

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My truck has the towing with exception of the bigger mirrors and rear ratio. I think I`m limited to 7400#, but I don`t tow with the Titan anymore, lol...

either way you slice it you`ll be spending a few ducketts to get it squared away.
the cheapest scenario is to : replace the cross shaft pin I think Spartan has a replacement HD pin, but does not include a roll pin.

mark the tooth that blocks the cross shaft pin with a sharpie.
ground down the point of the tooth till it can clear. this is not in the contact area and a well know speed shop cheater trick.
knock out the roll pin, don`t mess that up, they are very difficult to get another one.
clean up your gears provided the whole assy didn`t get a metal bath., take a whizzer to the teeth if there are any burrs.
wash out very well.

install the spiders exactly the way they came out, in the same order and side, watch for the shims.
slide in the new cross shaft pin, insert the roll pin and tap in to the same depth it came out.
install your cover using Grey RTV for gear oil, let set up, then add lube.
I prefer Lucas gear oil.
 

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Discussion Starter #15
So, I'll just be running with a missing tooth?

I appreciate the help.

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So, I'll just be running with a missing tooth?

I appreciate the help.

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ok, if it were me, I`d repair/build it better now than later. going with a newer 08+ axle assy.


BUT, if you absolutely have to get it back on the road now, and need a bandaid at least change the cross shaft pin, and clean it up.
but you won`t know the extent of the damage until you get into it. so there is going to be down time no matter what you do. if you discover your ring gear and pinion are toast from metallic wear, it is not a matter of if, it`s a matter of when.
Yes, you will be operating with a small 1/8" corner off the tooth. I did the same thing to remove my CS pin, or your looking at removing the whole carrier, removing the ring gear and starting over setting everything up.

so you need to decide how, and what you want out of the truck and proceed. This is a well known issue with Titans, especially the early ones.
My spyders were shedding metal at a very young age. I didn`t waste anytime looking in to it and taking care of it.

by the time you realize what will fix it for the long term, you`ll be changing the diff or axle assy for sure...

since your 4wd, mine wouldn`t work for you with the 2.94 ratio.
 

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My truck has the towing with exception of the bigger mirrors and rear ratio. I think I`m limited to 7400#, but I don`t tow with the Titan anymore, lol...
I prefer Lucas gear oil.
"I prefer syrup!"

You don't have a tow package.
 

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"I prefer syrup!"

You don't have a tow package.
well that`s what they told me and I never cared to look into it other than having the integrated bumper hitch and wiring already in place. and when we went to look up the correct battery, it was the big tow larger battery that was needed. what else can I say...
doesn`t really matter does it, lol...
 

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The Spartan cross pin will fit the OEM differential?

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yes, the cross shaft pin that came with my locker fits right in as it should. I believe they offer a replacement HD pin. I don`t think the replacement comes with a roll pin. at least not when I got mine.
 
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