i havent seen it asked yet, will a 5.3 LS engine oil pan cooperate with the crossmember?
Yes! In the old thread there were a few people that bought these and had an LS swap. I haven't personally installed one in an LS truck yet so I can't say for sure exactly how much clearance there is at specific points. Considering different engine mount combinations and placements, things might be a little different under there depending on your particular combo, but I can say that there are at least a few members on here that have done the install without any interference. I can't say for sure since I don't talk to every customer about their exact install, but I'd wager a guess that I've sold these to probably 5-10 people with LS's and haven't heard anything back about fitment issues!

-Darren
Totally BITCHIN'! money sent, order placed for me and 63chevyII!!

haha yes lived there till '09. Right on! I'm sure Brad and I will both come to pick them up.. We'll talk.