I'm in the middle if my first motor swap on my 82 and I had a 2.8l in it and I pulled it bought a 350 and bought a trans am to use the 700r4 and I've come across a few problems with the trans crossmember I ended up putting in the trans am crossmember but I had to slide it up and only have two bolts it it the car isn't on the road yet I just need to know can I drill and tap the subframe or can I drill and notch a hole on each side just enough to fit a nut and a wrench in there