I did this recently. Once I removed the crossmember, I was able to remove the oil pan. It's a tight fit, but can be done. Basically, drop the crossmember, and then remove all the bolts from the oil pan. Pull the front of the oil pan down, and remove the two bolts that hold the oil pump onto the engine block. You can get in there with a 9/16" wrench. Lower the oil pump into the pan, and then slide the oil pan forward until you clear the center drag link.
Another way would be to remove the crossmember and also the center drag link. Then you can lower the oil pan straight down without removing the oil pump.
Of course, I am assuming you're talking about a stock oil pan...
I have done this by removing the crossmember, and detaching the idler arm from the frame.
That's how I've always done it in a Mustang.
1970 Fastback (to be finished outside as a Boss 302 clone)
393 Windsor AFR 205 heads with 11.5:1 compression
Tremec TKO 5 Speed
Link to my Hub Garage and blog about my car http://www.hubgarage.com/mygarage/maxum96
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.