65 Valiant Ball and Trunnion Question

Professor Fate said
The rebuild kits are tough to find, but these guys still list them:
"Detroit"-style ball & trunion repair kit for the front and cross-type universal joint for the rear of all 1960-65 Plymouth Valiant; all 1964-65 Barracuda; all 1961-62 Dodge Lancer and all 1963-65 Dodge Dart (moparmall.com)
The trouble is that the housing becomes worn after all these years, and new ones are unobtanium. The workaround is to have a plate made to fit between the transmission flange and the trunion housing, spacing the housing back so the balls ride in an unworn (or at least less worn) section of the housing. Doesn't take much, maybe 3/16 give or take?
If it's too far gone, probably your only other option would be a driveshaft conversion, as outlined here:
Early Valiant Barracuda Club - ball and trunion U-joint conversion (earlycuda.org)

Thanks for all the info. The rebuild kit you listed is what I used for my ball and trunnion, it fit well. It's too bad they don't sell the actual housings. Thanks for the clever workaround idea, I never would've thought of that. Might be an option depending on how worn the housing is.

My friend just did the U-joint conversion you posted for his 61 Belvedere but it cost him around 800$. Trying to see if I can make do with the ball and trunnion for now.

I'm headed to the Mopar parts yard in Ontario this week so I'll see if I can find a NOS or a used trunnion that's in good shape over there.

Cheers