I have an 89 Marathon that is used offroad 90% of the time and would like a limited slip or posi traction rear and I really don't want to weld the spider gears making it a true posi. Can anyone tell me if the rear from a newer cart has the same mount for the motor. I'm not conserned about the spring and shock mounts because they would be removed to make way for a custom 4 link with coil over suspension. Or does anyone know of a place I can get traction control for a Marathon? Thanks for any input. Jim