Posted By: hudsonhornet7x
Is there a difference between the 6.4 Crankshafts? - 07/07/17 06:41 PM
So there are two part numbers for the 2 different 6.4 crankshafts that Chrysler uses in the trucks and passenger cars.
5038339AE for the truck
68293005AA for the car
Does anyone know what the differences are?
Posted By: L4staero
Re: Is there a difference between the 6.4 Crankshafts? - 07/08/17 10:52 AM
I believe they are dimensionally the same but the truck crank has extra hardening etc. This is as much as i can tell from my research
Posted By: Medlock51
Re: Is there a difference between the 6.4 Crankshafts? - 07/10/17 01:10 AM
Looks to me that one part # has been superseded by the other... the challenger had the 6.4 before the truck so it looks like they now use one number for both.
As far as 'extra hardening' I'm not sure what that would be... the journals are nitrided and both would be heat treated.