Can you get the front to lay out with out the dropped uprights? I have all the front suspension out of my 52 and debating what direction to go in..I bought 3" dropped coils but I normally bag my rides..decisions decisions....
http://www.jalopyjournal.com/forum/showthread.php?t=152076 That's a pretty good thread on bagging a 49-54. My guess is if you have a body dropped truck you won't be happy with just a 3" drop. At least I wouldn't be!
your not gunna lay the cross member on the ground with out drop up rights i believe even with the dropped up rights you might have to slightly z the frame. to get it that low using the stock setup