[mrein3]

1. Most if not all the board suppliers carry the Blazer tank conversion kit.
2. Run a new fuel line from the new blazer tank to the fuel pump. For the gauge you just need to lengthen the existing wire to get to the connection on the new tank.
3. You're on your own for fuel doors. Some people find a Blazer filler neck. Others do a trick through the side marker light filler.
4. One member used to make a filler for he stock neck hole. I don't know if they are still available. Some guys hack that part out of the other side of a junk cab.
5. None. Unless you have an under the bed spare tire. That is where the Blazer tank goes.