hello members i am looking for a photo how is look like the group a center in the gearbox diff the 50/50 one..is the same like the original or they write 909 ford motrosport

 

I doubt you will find a picture, the difference is in the amount of planet gears, 3 set on the std and a 4 set on the 50/50. I have only ever see one 50/50 centre diff.

 

thats nice info ididnt know it.i wondering how can i know look like a group a diff center be cause i will buy one ...the ratio is diffirent ?and the chain must be diffirent

 

If you are on about the step off then yes, ratios are different. But group A is either a 7.5" FFD Front/9" rear.
The rear will be 4.44 in most cases the front can be a 4.44 or a 3.6.

They did move to an 8" front on later cars