Are these the shift arms needed?

 

They look like they would work but to be honest I am not sure since I currently have no reference to compare. The rod end types look to be correct and according to my parts book, one of the rods (intermediate and high gear 8C-7326-B) should be 10 25/32" long total length. My book does not give the dimensions for the low/reverse rod (8C-7328-B). If there are no part numbers on the rods, I cannot be sure even though they look correct. If one of the rods is 10 25/32" long though, I would guess they are the ones. Perhaps someone who already has the remote 3 spd. shifter could let us know if these look to be a match to theirs.

 

The short one is 12 and 1 inch long. They came off my 51 three speed.

 

According to my parts book, 48/52 use the same rod so I would think if this came from your '51 F1, it should work I would think. It would be worth a try anyways. PM me with a price if you would.

 

I tried to get a pic of mine, but I'd have to get underneath, not happening right now. But they look just like those. The long almost-straight one is the 1 - R.

You can save a lot of trouble and time by replacing the trans ends with these, real cheap at Grainger or places like that. For 5/16" rod. They really tighten up the shift action too, and don't wear out.

 

I am pretty sure those are correct, the shapes are right for sure.

 

Here you go, took a pic.

 

OK, I think I now will have what I need based on the pictures. Barnfind51 is sending them my way. Thanks to all for helping out.
Ross, those ends look like the ticket as the ends on the rods that George is sending me look like they have seen better days. Thanks for the "heads up"!