Well, let me say something here and I am not trying to put anyone down. First, I know nothing about the Allis model in question so I won't even discuss that. We used to farm with both AC and JD and, if maintained properly, they both did what they were built to do. What I will say about my own experiances in the past two years is that I now have a 1948 JD Model A and a 1948 WD. I usually work the WD the longest and hardest. (Both were restored by me) My WD has had to tow my JD home three times, WD has never needed towed. What does that mean??? To me it means I will only buy AC in the future but then, who cares anyway, besides me?