Engine/Transmission (1998.5 - 2002) Identify your differential?

[andrewkoperdak]

Can someone please tell me how identify which rear end model I have. My tech manual shows 4 rearends. I have the tech manuals that you can order from the back of the owner's manual. Starting with a 9 1/4 inch and moving to something like 486 RBI. I have read all the exterior tags and all interior stampings. Nothing seems to lead me anywhere. I just changed the lube in the tail so I looked especially close for anything. I am not asking about my ring gear size, I know I have a 3. 54. I also know it is locking differential. I am more interested in finding out what DC calls my rear end so I can reference the right section of my tech manual.



DC gave me the wrong rear oil too. I got 75W90. I told them I had t 3/4 ton with a Dana 80. Tech manual says to use 80W-140 synthetic if you tow. I guess they thought I only take it to go get groceries.

 

[csutton7]

you have the DANA 80 rearend... chris

 

[andrewkoperdak]

Chris,

Thanks for the reply... I know I have a Dana 80. DC calls them something else in the tech manuals. the are XXX RBI. I want to know what the XXX is for my truck. There are several flavors of Dana 80 depending on what options you opted for when you ordered it.





andy

 

[Alan Reagan]

http://www.dodgeram.org/tech/specs/axle/rear_axle.html



Check Fritz's site. Looks like the 286RBI if I'm not mistaken.

 

[andrewkoperdak]

Thanks Alan,

That was exactly what I was looking for.

 

[csutton7]

AK-----knot on my head--I need to read better--you got the info from Alan, so you're good to go---chris

 

[Dane]

248 FBI = Dana 60 front axle 9. 75"

248 RBI = Dana 60 rear axle 9. 75"

267 RBI = Dana 70 rear axle 10. 54"

286 RBI = Dana 80 rear axle 11. 25"