Ae86 bulk head mod to fit hydrolic clutch?

[dinkers542]

I was lucky enough to snag an '86 GTS shell with all of the parts and rebuild engine for $1500. I am going to swap all of the parts to my 85 sr5.

As I look at different write ups for swaps I find more and more little tidbits the last write uo did not. I just cam across a thread that said to put in the hydrolic clutch from the GTS I will need to make a Modification to the bulk head.

I have googled my fingers off and couldnt find an explination of what this modification is.

Any help with explaining this would be much appreciated

Thanks,
Frank