I recently got an 89 V10 Blazer Scottsdale from a friend of mine. 2 things that're wrong with it that he knows of is the battery is completely dead...won't even tak a charge now. I'll just get a replacement battery. Also, the rear window handle doesn't operate the window. The only way to get it down is to pull it down with my hand. There is some spring action when it's about halfway down. Also, the only way to get it to stay up is to pull it mostly up, close the rear gate, and push it up with my hand. Is the repairable, or should I comb the local junkyards for a rear tailgate for an 89 blazer?