I did a disc swap on my '73 FJ40 and I picked up a couple knuckle arms at a swap meet. It wasn't until I got the knuckle arms all cleaned up and painted that I noticed that they had different hole diameters for the tie rid ends. I guess there are different TRE's with large and small diameter bolt size? I guess I need to find another knuckle arm so they match? Any help would be very much appreciated.