range rover diffs ??

Hi could somebody help me tell if I have got range rover diffs or not.

I did purchase these a couple of years ago and was told they were ranger rover diffs I am just getting round to fitting them now.

Having swapped the front diff and comparing the 2 I can not see any obvious difference.

How can you tell the difference looking at a series diff compared to a range rover diff.

i can , if you count pinion teeth 3.54 diff as fitted to defenders rrc and disco has 13 teeth ,series 4.7 diff has 10 ,you can also tell by looking at diff carrier

thanks for your reply i will check tomorrow