Sometime back when my computer was on the blink (still is acting up just got it back Thursday) someone PM'd a Question or emailed me about the rear end in my 48, and I can not find it I had seen it while I spied my stuff at a friends house. The rear-end was a 78 which they sized to our AD's width and new axles made, hope this answers that message. I apologize for not getting back sooner and forgetting whom sent the question.