1996 Blazer 4wd 4dr 4.3L -->I just unscrewed my fuel lines at the back of the LIM. The lines seem to be stuck in place and do not want to move away from the bracket on the LIM.

Do these fuel lines pretty much stay in place by the firewall OR is there another bracket under the vehicle that needs to be loosened in order for them to be moved? Should I just pull harder on the lines for them to move? The nuts are completely unscrewed.

 

dont know about the 96 but my 98 has them bolted to the top of the tranny