ac 130 al wheel steer, built by simplicity?

[bal55]

We have a new ac 130 aws 23 hp b+s , did simplicity build this? it has the 3 bolt rear wheels.
who knows about these transmissions?

 

[mechanic mark]

http://www.simplicitymfg.com/us/en/support/manuals
http://bsintek.basco.com/BriggsDocumentDisplay/lgiqxGO.SFzXFix2.pdf


Model number is 7800511.