I have a '91 3.0 Yota extended cab Pickup. My fuel tank has a lot of rust with in itself. My question to you guys is, Can I use the fuel tank off of a '94 regular cab that had a 22 re engine in it?

 

It depends on whether it is a short-box or long-box.
http://www.toyotapartsoverstock.com/...rchString=tank

 

Both are short. Reason for me asking is the '94 is a parts truck, the '91 is the one I'm trying to get the last of the problems fixed as so it can be driven regularly. I do know the fuel tank on the '91 has a good bit of rust within it. The '94 looks pretty clean.