I have 2 83 big red both motors run great but when i go to move them thay will only move 2 feet forward or back then the wheel get stuck it like the chain get stuck the one will drive the other one even in gear will only go 2 feet then back end seizes it all in mint shape the one has not been out in ten year stored in a heated garage any way need help if u have any idea please let me know thanks

 

chains binding? bearings bad in rear axle?