My sons B44.1 did this once and it turned out to be a broken pin in the front prop shaft. It still had enough friction to turn the front wheels off the ground but when driving it was a rear wheel drive. Worth checking.
I prefer 4WD with no drag brake as it makes for a smoother transition into a corner at least for me. I don't think it would be just spring weight causing such a dramatic imbalance but a Green BB front is pretty soft. I usually run a Losi Blue or Black, similar to a AE BB Purple. I also run a stiff front anti roll bar.
|