I replaced my 4 bolt LCA without any problems other than loosening the seriously rusted bolts. I never had issues with removing or replacing the bolts. I just jacked up the tranny about 1/2" and it gave me all the room I needed.

99 CSVT Green/Tan # 84 of 2760 Built on Wednesday, September 30, 1998 15.376 @ 92.00 MPH Stock 75,000Km 96 Contour GL 2.5L V6 ATX 170,000Km