Yep...the Joint fits perfectly into the shaft side

So everything I can find and measure says the yoke I got is for the 46RH/A518 trans, it also fits into the transmission perfectly and measures identical to the yoke I took out.

Of course I'll be honest I can't take anything on this truck at face value as far as correct, this truck was through a rough life before I got it. It was wrecked and then poorly repaired before I got it, still had a bent frame when I got my hands on it (which I had professionally repaired so all good there now), and some other odds and ends on the truck that were just weirdly slapped together...

I also had a message out to the MFG of the yoke I bought, they finally got back to me with "We've seen this before, we usually just grind down the machined surfaces until it slips in or use a weaker greaseable joint" lol. I've not had much U-joint experience, are greaseable joints without caps shorter than non-greaseable? Even if the overall (with caps) measurements are identical, I wouldn't think so but I've been known to make incorrect assumptions before

 

Well, the greasable fellers are hollow..... and I think the ends of the cross are chamfered, for better grease flow... that might make a difference. I am just curious how they got the original one in there, that you had to cut out.....

 

Honestly if I had to guess, a large hammer lol. Guess I will order and try a greaseable one and if that doesn't work just have to grind the sides down hopefully evenly to prevent unbalance

 

Compare the ujoint main bodies. Some are forged different than others. May have to choose the other style