Which diff?

[Dan Simmonds]

I'm looking to buy front & rear diff gaskets from Genos (keeping the stock diff covers on for now) - I see they advertise an AA 9. 25, 10. 5 and 11. 5 all for the same model year '03 to '07. What's the best way to check which axle model I have - and do the front & rear diffs take the same gasket?



Truck is a 3500 dually with 3. 73 rears - build date of 10/19/06.



Thanks!

 

[MickeyMiller]

9. 25 front (all 3rd gen 4x4's) and 11. 5 rear (10. 5 was only on gas engines and some '03 auto diesels).

 

[Dan Simmonds]

Good info - I appreciate it.

 

[SierraRam]

I agree you have the 9. 25 up front and the 11. 5 rear.



SR

 

[JCasper]

I agree you have the 9. 25 up front and the 11. 5 rear.



SR

Yup, I agree also

 

[opjohnny]

I bet they don't sell many of those gaskets because they are reuseable. One of their better ideas!



John