Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Did you ever get this fixed? I tore apart the M135 this week, if you still need an air pak I have a takeout one, looks newer, but still unknown condition. PM me if interested.
You might look in the TM section of the SS site for the manual for the M211. The air pack is probably rebuildable. I have one out of a M135, unknown condition, if you need parts. The brake system is similar to the M35 series trucks. I never really dug into the brakes when I had my M211, so can't...