Solutions for a rusty tank?

I have an auxiliary tank under the seat of my jeep it sat for nearly 13 years unused and both tanks got very rusty... I replaced the rear tank... (Not fun) I was wondering if there was a solution to the problem or if I should just replace the tank up front as well? Any kind of paint or clear coat or other chemical that can be applied without blocking the fuel outlet?
Thanks in advance
Jake

 

Replace it............can't hardly get them boiled out any more for less than the cost of a new one.......but with rust it's a loser..........maybe go plastic this time around?

 

Yeah someone at work suggested plastic as well. Are there any foreseable problems if I go this rout?

 

Lots of them in service.........never heard a complaint. Google up Jeep gas tank. There is a company back East making all the Jeep replacement tanks.

 

Thanks. Last question... I didn't put the tank under the seat so I am unsure of the year of the tank. Did the under the seat tanks differ in any way or will I be ok getting any tank designed for a jeep pre 71?

 

They differed with the 4cyl and the 6cyl engine, IIRC the 6cyl's had a spot for a return line.

 

There's an early and late tank wrt the sender. Early senders have 6 screws, later senders have a lock ring. For the late tanks, the outlet and return both come out through the top, via the sender. MTS shows the sending units - http://www.mtscompany.com/jeep.htm - note that the under-seat tank ended in 1971, contrary to what's listed on that site.

Tank resealing has been covered a lot here - use Google - https://www.google.com/search?q=site:earlycj5.net rusty gas tank