This was not a pleasant or easy job to do and may take 3-4 hours to accomplish.
Here is a good similar post on the replacement for an Olds Bravada.
http://forums.trailvoy.com/showthread.php?t=56051
Here is a good article on removing the fan shroud.
How to replace the radiator on a 2002 Chevrolet Trailbalzer
1. unbolt the fan from the water pump. Use a 12" crescent and a screwdriver to wedge between the pulley bolts to keep it from turning. As an option there is a tool available at AutoZone.
2. Remove the front grill and fascia.
3. Remove the plastic trim along the top of the radiator.
4. Remove the diagonal brace that goes over the battery. Disconnect the fan clutch wiring connector.
5. Remove the upper cross member across the top of the radiator.
6. Remove the one bolt behind the middle grill that secure the upper radiator mount.
7. Remove the radiator hoses and transmission line. Spend some time to plug the lines from leaking.
8. Remove the fan shroud bolts and the two upper condenser bolts.
9. Pull the fan shroud out. There is not much room. Just move it around and to your right.
10. Pull up on the condenser to disengage the mounts that are on at the bottom of the radiator. The condenser can remain in the vehicle.
11. Pull the radiator up and out. Again it is tight.
When installing:
1. Note the two posts on the bottom of the radiator. They need to be seated in the rubber mounts. Look underneath the vehicle to make sure they are in place after installation.
2. Make sure the condenser is secure in the mounts at the bottom of the radiator. I had to take place a block of wood on the top of the condenser and give it a little blow from my hand to seat it in place.
I hope this helps.
Let me know if I left a step out.
Here is a good similar post on the replacement for an Olds Bravada.
http://forums.trailvoy.com/showthread.php?t=56051
Here is a good article on removing the fan shroud.
How to replace the radiator on a 2002 Chevrolet Trailbalzer
1. unbolt the fan from the water pump. Use a 12" crescent and a screwdriver to wedge between the pulley bolts to keep it from turning. As an option there is a tool available at AutoZone.
2. Remove the front grill and fascia.
3. Remove the plastic trim along the top of the radiator.
4. Remove the diagonal brace that goes over the battery. Disconnect the fan clutch wiring connector.
5. Remove the upper cross member across the top of the radiator.
6. Remove the one bolt behind the middle grill that secure the upper radiator mount.
7. Remove the radiator hoses and transmission line. Spend some time to plug the lines from leaking.
8. Remove the fan shroud bolts and the two upper condenser bolts.
9. Pull the fan shroud out. There is not much room. Just move it around and to your right.
10. Pull up on the condenser to disengage the mounts that are on at the bottom of the radiator. The condenser can remain in the vehicle.
11. Pull the radiator up and out. Again it is tight.
When installing:
1. Note the two posts on the bottom of the radiator. They need to be seated in the rubber mounts. Look underneath the vehicle to make sure they are in place after installation.
2. Make sure the condenser is secure in the mounts at the bottom of the radiator. I had to take place a block of wood on the top of the condenser and give it a little blow from my hand to seat it in place.
I hope this helps.
Let me know if I left a step out.