I have to say that the aluminum rims on a CJ REALLY make it look like it was meant to , mean and aggressive ! I dig that ! Unfortunately , yes , aluminum won't hold long off road . Loose dirt will allow for the torque to start tearing up the lug holes first and the cracks just spread from there. Spoke flex dosen't help either. Those aluminum rims hold up for a while , but how long can we trust them for ? They will eventually crack and break . We know steel is best off road , so I guess it's going to be a individual thing ? If aluminum braks on the street with tire boiling and sharp turns and curves , well , off road will take its toll . I don't think Joe wants to beat on his project jeep , but he will find himself having fun soon with it and we don't want it spoiled just because of an inferior part , namely a rim . We know that can be nasty !