After looking at the track carefully with the old car in place, there is a fair amount of play which should easily accommodate the new cars. I am assuming that the fit of the new cars should be more snug so the bearings actually turn. I do not see where I would have to sand the new car down.
My problem has been inserting the cars. Looking back at the old cars, the edges are beveled allowing for the car to be inserted at an angle. The new cars do not have this.
Secondly I find when trying to insert the car I hit the mast step not allowing me to rotate the car completely.
I am assuming that the insertion site on the newer crossbars is different than mine.
I can only think of three possible solutions.
1. Pull the cross bar out of the corner castings and slide the car in from the outside in (assuming the track goes all the way to the end).
2. Buy the new cross bar (at just under $250 it isn't much more than the traveler cars cost!).
3. Remove the forward lip of the track(whited out below).
Can MBounds or anyone else post a picture of the slot in the newer crossbars?
Although it may not look too pretty, I do not feel this would weaken the bar any. I wouldn't mind too much the cost of a new crossbar but would sure hate to be stranded in the ocean or damage other parts if it broke. I think I can get past the mast step blockage by taking the traveler car apart and put it back together once inserted into the track.
Pictures and comments are greatly appreciated.