Yes, improper tire heating... not getting the transmissions into high gear soon enough during a burnout or letting off the throttle during a burnout in first or second with a full race valve body with no compression braking in first or second. Always caused by the springs and rollers being folded over in the sprag and allows the front drum to be spun at an overdrive ratio of the first gear set at launch. There was a Chrysler Power (remember them?) article called “exploding torquflites” that covered it in great detail. Another argument to be made for the strength of the 904 was the super stock hemi class folks that were paying mega dollars for big block pattern 727s modified internally for 904 rotating assemblies. The 904 is also just simplerwith fewer internal parts as well...
