Ttransmission removel from F1 HELP!

[cowtown]

I am getting ready to remove my 4 speed tranny and install a newly rebuilt 3 speed top loader along with clutch and everything that goes along with it in my 50 F1. I just put it up on jack stands and ready to start. My question is that it doesn't look like there is enough room to slide the 4 speed tranny back from the engine because of the cross member sitting so close. Am I missing something ????