[Ben Piecuch]

How are you actually getting your fingers in there to make/break the chains? That's a very tight fit with very little clearance.

Also, do you really need the two, beefy cross members in there? I'm guesing those are 4x4 box tubes, which add a considerable amount of weight. The stiffness of the side tubes should be plenty, especially if you're going to add bumpers to the outsides...

Nice modelling, great custom install of the shifting (servo, at that) gearbox. We contemplated 8wd as well, as it's a great concept. We decided to stick with the simplicity of 6wd.

Good Luck!

BEN