NEED HELP spider gear assembly

[ball75]

I have a 1720D. Last winter the rear wheels stopped engaging, and I finally just got time to take the rear end apart. I found that the spider gear failed. The rod that holds the two small pinion gears in place fell out completely and cause the gears to move and tear up the carrier. Now all four gears have worn down teeth so I need to fix the entire assembly. My problem is that I have found all the parts to rebuild the spider gear assembly EXCEPT the carrier itself. My question to the group is does anyone know where I can start to look for one or have a part number by chance can search for? I need to get it back to work for the short summer I have here in northern WI. Thanks all for the help, I added a couple of pictures of what I'm working with.

 

[winston1]

I don't have a 1720 parts number, I do have an 1820 parts manual. It shows in has two different part numbers for the halves. 194520-32300 and 194520-32310. Yours probably different.