Let me first say, this is not in a stock T.

My T doodlebug has a modified '24 Buick transmission after the T engine/trans. Thusly, it runs a T u-joint right out in the open, and it is worn bad, no doubt to the lack of grease for so long. I see three options for this. 1) Continue to run and destroy stock T u-joints. 2)Make a solid style coupler---although it would still have to have some play in it due to chassis twist. 3) runs some type of modern U-joint that is grease
able.

So I have some ideas kicking around in my head, so has anyone tried some type of modern u-joint retrofitted to the stock u-joint housings or used modern yokes and u-joints and come up with something dependable?

There is some discussion of retrofitting modern needle bearings into the stock U-joint in this thread:

http://www.mtfca.com/discus/messages/411944/420412.html?1391440237

I've been running one of Larry Azevedo's modified roller bearing ujoints for the last two years. No problems, works well. Contact him at:
dribblebit@comcast.net for more details.

1. No please,

2. Sounds like a good solution. Some play in the coupling can take up the very little twist you may have in a shortened chassis that isn't driven in the woods as much as back in the day.

3. You won't find a modern u-joint that fits to a square shaft, so you'll still need to make couplings..

4. Make a sheet metal/rubber shield around the u-joint that keeps the grease in place like the driveshaft ball does on a T?