Yeah not sure , the numbers on the diff are how i have seen them , Its hard to see whether or not its a O or a 0 because all the O are the same size and shape , Whats the protecto plate , And the gearbox number i checked it , its POE04B . How can i find out what motor it came out with because i know now that the 350 that is in it is a CKW motor out of 72 model but has had LT1 Spec done to it