Should/Can the 3 of us co-sign on a car loan?

I'm not sure if having your husband co-sign is gonna help get the loan approved. I mean, think about it, from their point of view, he's a part owner, and has been irresponsible in the past. Not someone you want to trust with your fifteen thousand dollar investment. It won't really help his credit either, you can't balance out bad stuff with new loans with good payments. I think if you all sign, you'll end up fighting, I bet there's even questions on here about stuff like that. Assuming you didn't marry quickly after his credit got bad, the negative stuff on his report should be due to be removed. I'd check into that to improve his credit instead.