All P Model 7R's are the same Sprocket Hub.
Jeez man you need to stop trying to help people with problems as your obviously Guessing rather than giving pertinent advice.View attachment 21972 I stand corrected I guess
Looks to me like an old race is stuck to your carrier, if that's the case it will be preventing insertion how far off is it? Your carrier shouldn't have anything between the hub and its aluminum body. Either intentionally or unintentionally it looks like someone has left old races in there 2x.because I see 3 defined lips here.