scalawag wrote:The metal hull is always an option, and as you say is close to the price of the tensioner. You would probably need to include the price of a new set of road wheel axles too, as the swing arms on the metal hull have a different fixing to the plastic ones.
The HennTech is expensive, but it is a very well engineered solution the track tensioning.
The Taigen metal hull comes with its own swing arms, and has all the pieces needed for the plastic wheels from the HL. I think it is meant to be a one stop replacement of the HL lower hull so you shouldn't have to buy anything else. I have converted 3 of them to the Taigen hull, but I had metal wheels already so can't say how the plastic ones would fit.
Having recently bought a used tank with HennTec tensioner installed I was a little disappointed with it. It just doesn't seem to stay tight. I might have gotten it right this last try, but will find out this weekend when I will be running the tank again. The tensioner that comes with the Taigen metal hull is quite elaborate and it does work, but the problem is that I never really end up using it because if you adjust it to tighten it, it pulls the idler way higher than the real thing, which to me destroys the look. I have the same issue with the Taigen KT metal hull as well. They are all really good hulls, but because I want the low idler look, they are always set to the lowest setting and I ended up using track links to make the final adjustment. It is more difficult with the King Tiger since it has two piece links so I am trying to find a solution to that right now, either by extending the idler mount so even at a high setting it is still low to the ground (i.e. extend out backwards rather then upwards).
I do have a spare set that I will sell for cheap if you like. It is design for HL hull. Send me a PM if you are interested.

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And it mounts like this:

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MichaelC.