If the drive wheels were off, is that enough access?Watch, SOS pads have soap impregnated in 'em. Course steel wool will do the job.Get these jobs separated. First job is access, then the repair.Can you get air to the suspension? Choose a side to pull drives off, JB weld prep and apply. Go about your business and decide what to do about the long term later.the tow needs air in the suspension anyway... time spent is money saved.This would be so much easier standing there beside you...!Happy coaching!Buswarrior
Looks like that has been leaking for a while and he probably has a another air leak besides his tank.
I've got 50 that it works fine! Y'all have the experience doing things right. My badge says hacker and JB Weld if applied to clean surface is bombproof. It's magical stuff and really is like metal - you need to grind it off once set.