Took the car to a out of town car show/race at a small 1/8 mile track. 69 Sat, 528 Hemi, 727, BFG drag radials. There were a few issues with the track prep, did burnout, launched hard with good bite, but about 30 ft. out, broke the tires loose a bit but drove thru it. Lined up a while later, launched with good hookup, but about 30 ft out,trans acted like it hit neutral, no forward in any gear, but maintained reverse. I backed up all the way to my trailer and winched it on. All my years with T/F's, I never broke one before! I have a good trans shop that has always done my work and the owner was a Chrysler line mechanic for years, knows TF's. I will call him monday, but I am curious as to what actually happened? If it matters, it already has a bolt in sprag. There is also no outward damage, leaks, etc. but does whine loudly when in reverse. Any thoughts on the amount of damage I'm looking at? Thanks!