95 ram 2500 v8 5.9l differential fluid type

[Matthew Bell]

so I'm trying to figure out what type of diff fluid my rear axle would take and I'm also looking for a parts number or a website that would lead me where I could get a new spider gear rebuild kit if there is a rebuild kit. I'm not exactly sure how to identify what type of axle I have. all I know it the number on the tag that's on the diff itself #605634-6 its got a ten bolt pattern on the diff pan. it a new truck to me just bought it so I don't know much about the truck yet and I've never had to service or rebuild a rear differential so if anyone has any info or a place to start looking id greatly appreciate.

 

[Spike95]

There should likely be some basic info on it on the build tag inside your glove box

 

[Fast69Mopar]

so I'm trying to figure out what type of diff fluid my rear axle would take and I'm also looking for a parts number or a website that would lead me where I could get a new spider gear rebuild kit if there is a rebuild kit. I'm not exactly sure how to identify what type of axle I have. all I know it the number on the tag that's on the diff itself #605634-6 its got a ten bolt pattern on the diff pan. it a new truck to me just bought it so I don't know much about the truck yet and I've never had to service or rebuild a rear differential so if anyone has any info or a place to start looking id greatly appreciate.

With the BOM, or Bill of Materials Number of 605634-6, this is a full floating Dana 60 with 4.10 gears.

Now, with that being said, Dana originally recommended 80W/90 gear oil for this rear diff and they also recommended the addition of a friction modifier for the limited slip applications.

Then they changed to recommending a fully synthetic 75W/140 and the addition of a friction modifier if it was a limited slip diff.

There are a lot if 4x4 shops and independent shops that recommend a fully synthetic 75W/90 gear oil as well.

I personally use the full synthetic 75W/90 and if my customer request it I will use the 75W/140. Don't forget the friction modifier if you have a limited slip.