been learning on the difference in rear ends Mine is an 8 3/4 the housing I got in 3:23 is 741 witch is made for a slant 6 but was also used in the early 426 hemis.
Not going to the races with it just want something I can drive long distance.
My buddy with the white Dart just changed his gears from 3:23 to 3:91. The 3;23 worked good when he had the 4 speed in it but when he put the 5 speed in it he said it didn't pull as well in 5th gear. Works good now he said with a grin on his face