Big Bear Build (Triple B) in Marui Posted Saturday at 04:22 AM So I got the parts last week and got the BB back together - there's good news and bad news. Good news, the 16 tooth pinion solved the locking up issue with the transmission . It now works exactly as it should. Also, brand new old stock gear case and motor mount installed too. Shiny! The front axle adapters work perfectly. Bad news, the rear wheel hub adapters do not work on this Big Bear. I'm not sure if the axles on other models are a shorter length than mine or what. In order to fit over the brass hex nut on the axle, the adapter has to be pushed down, past the threads where the wheel lock nut fixes to the axle. When the wheel is on the axle, it too slides to far down, not allowing the nut to tighten the wheel to the hub so the wheel just spins freely. It's been a long day, and I'm pretty tired, so there's a good chance that I mucked it up someplace... I'll look at it again tomorrow to see if it's me or the parts.