Dodge Cummins Diesel Forum banner
1 - 10 of 10 Posts

·
Registered
Joined
·
492 Posts
Discussion Starter · #1 ·
I've got an 02 2500 HO. My rear pinion seal is out and I don't really know if it is a 60,70,or80. I see the ID tag but it just has a bunch of numbers. I assume the 3.54 is the ratio, but what is the rest about?
 

·
Registered
Joined
·
51 Posts
I have a 2002 2500 as well and had the same thing happen to me. On a non-dually it is usually a 70 and on duallys it is an 80. Once you replace the seal be sure to check your diff breather isn't clogged. When it is clogged pressure builds up in the axle and the easiest way for it to exit is through the pinion seal. Hope this helps.
 

·
Registered
Joined
·
74 Posts
Dealer can run your VIN and give you factory specs. That is how I found out I had a Dana 80 as my rear.
 

·
Registered
Joined
·
391 Posts
It should be listed on the info plate under the engine hood. A lot of Dana 80's were also placed in the manual transmission models.... so I lucked out!
 

·
Registered
Joined
·
282 Posts
Mines an 80 also
 

·
Registered
Joined
·
107 Posts
i think the 80 is pretty common behind the HO motors and manuals. i have the 70 in my auto. it says on the under side of my hood
 

·
......................... .....
Joined
·
2,727 Posts
also says in the glove box, and its stamped in huge numbers on the diff, if you look where the casting goes from the pinion area to the main section, theres a "web" on each side, looks like a gusset, its stamped on there
 

·
Registered
Joined
·
348 Posts
Yeah, check in the glove box. Have a pic?
 

·
Registered
Joined
·
492 Posts
Discussion Starter · #10 ·
diff

Thanks guys. I found it in the glove box. It's an 80 in the rear and 60 in the front.
 
1 - 10 of 10 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top