journal sizes

Hello there im trying to find the original non ground journal sizes for the GTIR but i cant find them in the workshop book.i found these sizes on an American site, do they look right? main. grade 0 54.974 big end. grade 0 47.968 e.c.t many thanks

I found this a while ago, don't know if it helps?

useful links pdf's
service data specs >
https://drive.google.com/file/d/0B7Ub2apq5-pfQXVvdXNRb3ZRanM/view?usp=sharing

cool thank you spike and mr B thats the info i needed.... cheers