Just got the henntec. This is the second henntec I've purchased and the second time it's been unusable as delivered. The first one was for the Taigen King Tiger and I had to buy a whole new set of idler wheels because the henntec wouldn't work with the stock idlers. Now I get this one and it looks like it's designed to use the plastic idler and the shaft is too small for the metal idlers with bearings. Why would I spend over $50 for an idler adjust system and then use the cheap plastic idler that comes with the tank? Don't get me wrong, I'm really glad that guys take the time to make this kind of stuff, I just wish they'd get it right. The shaft on the henntec should be the same size as the stock shaft, that way you could use any idlers made to fit that size shaft and not have the problem I do now - a $50 item that I won't be able to use as desired without major modification.

Wait, let me clarify. They do get it right in a lot of ways, I just wish they'd provide more info about what may have to be modified and what specific parts it works with. I guess what I'm saying is - more info. I suppose I should have emailed first and explained exactly what parts I was using? Hmmm. I can make it work, though, I just have to turn a couple new posts at work.

As for the idler unit itself, it's a quality piece and it will definitely make the tank much better. Once I make it fit.

https://www.youtube.com/watch?v=hYEeCsfLCoo