1772 Driveshaft coupler
 

Finally bit the bullet and picked up a splined coupler for my 1772. I was thoroughly surprised that the dealer I stopped at had it in stock. When the salesman handed it to me I was positive it didn't have as many splines as the one on my machine. I didn't have the old one with me when I stopped. He assured me that this was the correct part. He was wrong. Mine is a 9-tooth and his is a 7-tooth. Looks like I'm returning it. Hopefully he can get me the correct part for the same price. $116, bushing included. I'm actually glad it is the wrong part. Check out the casting work on the new one. Pretty crappy how none of the holes are centered properly.

Attachment 66331

Attachment 66332

Attachment 66333

According to the Cub Cadet Parts Look-up site.......that part should be: CC903-1066

Just tossing this out for you to think about. You can convert the drive shaft to the Cyclops style CV joint drive shaft. You'll need a complete drive shaft from an 1863 or 1864, a pump adapter and the engine adapter. You would also need to drill and tap the pump shaft for a 1/4-28 bolt to hold the pump adapter onto the pump shaft.

Stopped back at the dealer today. They had the right one in stock. Salesman handed me the wrong part yesterday. So I'm back in business. I'd like to do an upgrade. I've tossed around a lot of ideas. How much would I have invested in a CV swap?

Probably around $300.00 when it's all said and done to convert to a CV shaft.

X2 on the CV, that's what I did on my 1772, never thought this tractor could run so smooth:beerchug:
http://i1192.photobucket.com/albums/...pscd0a6f60.jpg

I'm really interested in the CV conversion, but for now I'm gonna stick with original equipment. Probably beating a dead horse. I have all the necessary means except the parts for doing the swap, but just no time. I'd like to dump the disconnect clutch upon reinstallation. I have extra flex discs and an extra coupler. Figured maybe install the coupler in place of the clutch and add 2 extra discs with longer bolts. But can't figure a way to attach the fan. I'm sure others have done this, but can't find any pics. Good idea or bad idea?

^^^anybody? I've searched through a lot of threads and found many people that said to dump the disconnect clutch but none state how they did it.

Never did one that way but my guess is that you replace the shaft with a solid shaft like the 1872 has and use that style fan and rear coupler. You'll have to figure out the length and where the hole for the pins need to go.

This is kinda what I am thinking. This is just a mock up. Still need an idea for the fan.