Guy going to make a pair using my real cut up ones
I'm getting 63" center of the holes but if anyone could check there I feel better
I can't do it right now, but I'll measure mine in the morning and post it for you. It's important to get it right since unlike regular T's, the TT radius rods have no adjustment. It just bolts together, so you'll have problems if it's not just right.
Yes sir mine are laying here in 8 pieces I measure my rear end assy I get 63" center to center of the holes
My TT has a Muncie so it should be pretty close to what you need. I get 62 12" straight line, center to center. As I write this I realize I only measured the left side, so I can't be sure both sides are the same. I also realize that since we are talking about trucks that are nearly 100 years old, there very well could be 1/2 inch play in this measurement due to wear in the spring/perch assembly.
I think, if you can, you should get a stock radius rod, measure it then reduce by 12" for your Muncie. This approach would remove all measurement error due to flawed measuring and/or component wear.
Good luck and let us know how it turned out!
Henry thanks measured both sides of the triangle
I came up with 63" I'm going roll with that number for the first try although I can get 62.5 if a wiggle everything
If I'm off I will fix at the forward end once I get it back together but I'm got a lot work getting this rear end sorted out