tc35a 4x4 issues

[balernbud]

tc35a front axle won't work under load. Wondering if the engagement could be broken, the front tires will spin when there is light pressure on them, but get stuck and put them under a heavey load they just set there while the back tires are spinning?

 

[MiserableOldFart]

Don't want to insult your intelligence, but did you check your tire pressure to be sure the rims aren't spinning? I'm dumb enough to have gotten into that one, so please don't consider it an insult.. ;-)