can I chg. Trans.cooler assem. lines myself in my garage? are spec. tools req? on 1999 Chevrolet Blazer

trans. fluid leaking on driveway and was told the Transmission cooler lines had to be replaced. need to know if it' something I can do, if special tools are requed, etc.

Asked by for the 1999 Chevrolet Blazer
Better leave this one to a pro!! Pretty tough repair with a lift and proper dont know your skill level, cant imagin trying to do it on the floor, back at the transmission....