How do you change a transmission line on 2002 trailblazer?

OK Folks .....I just did mine as these seem to be a problem with 2002 Trailblazers/Envoys at 80K mile plus (See National Highways safety council website as their have been some complaints about these lines.) First get the pre bent lines from the dealer (all 4 sections . 2 small/2 large) as trying to splice them will be the biggest headache you will have all year. This is best done with the vehicle on a lift and you should have something available to support the transmission/transfer case as you will have to take the rear tranny support off and lower the tail of the transmission/transfer a few inches so you can get to the attachment points on the transmission (upper right rear of the transmission 3/4 of the way down.).Also you will need to disconnect the exhaust at the manifold and drop that down too, but be careful of the rear O2 Sensor when putting it back up so as not to damage it against the frame rail (Check engine light will be on if you do.). After putting all 4 pieces in (remember the clips at the joint betwen sections), check the fluid level per manufacturers instructions. Good luck.