Installing a diff

Hi guys
I planning to install a diff into my gearbox in the coming wk at my local garage
And the garage ppl ask me to find a break down diagram of the box for them if possible so they can hv it done perfectly
So does anyone can share any links or pics available
And so far I only know I need a slave cylinder while I installing the diff which seals and bearings I need to replace as well
And can someone please provide the parts number for me so I can order from a renault dealer
Thanks in advance for the help