Hi every one, Just thought I'd post the upgrade to the old Brass E8's AZL made awhile back. If you own one of these you are the proud owner of a really pretty static model unless you are OK with the grinding sound they make in turns. But finally a new chassis with traction tire and LOTS of room. As you can see its almost a perfect fit. the angled stops on the top of the chassis are the perfect height. front to back has just enough room for 1-2 strips of Kapton tape. and side to side is off by maybe 2mm. That leaves some room to add something (not sure yet) that will hold the shell to the chassis. At first I was only going to use the TCS AZL4 decoder and call it done but with all the room up top it is begging for sound so that's what I'll do:teeth:. Planning on a ESU mico and 2 sugar cube speakers. only draw back is they will be mounted on the top. And here is our patent. The chassis in the front is the stock unit. the one in the middle "well" just made it in the picture and the one in the back is the final cut chassis. You'll also notice the circuit board is cut. turns out I didn't need anything on that part of the board. I wanted to use the board for easy maintenance and it has really nice pads to attch the decoder plus cutting the back section off isolated the track from the motor This is the final layout (with both speakers on the back). I needed to cut back more room for the decoder on the A unit to make room for the cab indentation the b unit will not be filed back as far.