Earls Transmission Adapter, One Adapter w/ O-ring Seal Fits 4L80E (Some 2009 & Later) w/ 9/16-18 threads - Long (Rear), Nickel Plated Steel. There are always clearance challenges when doing an engine_x000D_ swap. One of these is routing the transmission cooler lines_x000D_ off the side of the transmission while cleaning the trans tunnel._x000D_ Earl's makes this easier with their line adapters.