Re: lockable axles
			 
			 
			
		
		
		
			
			They work well, but it puts a lot of strain on the light metal Tamiya spider cross within the differential. Gotta shop around for a steel cross upgrade or maybe the Gear Doctor offers them that way now. 
 
I had a 6wd Globe pulling 70lbs gvw up 12 degree incline, crosses did not last long... that was a decade ago, I vaguely remember some one offering steel crosses, but I can't remember who. 
 
After that trial & error episode, I then just manually locked the rearmost axle dropping a spider gear between the other two and put shoo goo in the other two differentials.
		 
		
		
		
		
		
		
			
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