I finally got some photos uploaded for my VXL FLM build, for those who were asking for them. I'll add more as I make more progress, but the build isn't exactly going at the speed of light. Seems I am always waiting for parts, no matter how much planning I do. I always end up needing something I didn't account for!
Okay, I'll start with the transmission because that was the first thing I built, even though I ordered a complete Fastlane Machine super chassis for the Rustler.
When stock, my VXL transmission had developed a wobbly slipper clutch input shaft, so I had torn down the stock transmission to have a look see. Some might remember my earlier posts regarding that. As it turns out all the VXL transmissions exhibit this characteristic to some degree. I never paid close enough attention to it when it was brand new, but after 6 runs, I could physcially feel the spur gear floating around as though the shaft was loose inside the transmission. Turns out the problem is caused by the input shaft not fitting snug enough inside the two support bearing's inner races. The bearings have play (from inner to outer race), but an undersized input shaft sort of exagerates this effect. I don't think it's a major problem, but when setting up the pinion to spur gear mesh, it's not ideal to have a shaft floating around free. The best cure, I found, was to add some Traxxas fiber washers to the input shaft. It helps remove some of the clearance or float of the shaft when the FLM case is assembled. The Traxxas part number for these washers is 1985. I ended up using them to also shim the differential. One in front of bearing was all I needed to tighten up some of the play or end float. On the slipper clutch input shaft, I think I ended up using two. Between the aluminum FLM trans case and the fiber washers, things turned out great. Less shaft end float, and a nice smooth and snug fit of the VXL transmission internals.
Here's a look at the VXL gears in the FLM transmission case.
A little closer. Notice one fiber washer on the idler. I ended up installing one more on the differential shaft and one or two on the slipper shaft. I don't remember. Best to check how loose the shafts are when you assemble your own transmission. They may be different. In the photo, I hadn't yet added the washers. I found after the fact that I needed them, and had to tear the tranny down again to install the extras. Doh!
And a different angle....
Anyway, this transmission case is a beautiful piece! The quality of the Fastlane Machine parts is excellent!
I give the guy who designed it a lot of credit. When bolted to the chassis, the rear A-arm mounts sandwhich the lower tranny plate between the chassis itself. Very sturdy!
I'm going to figure out something for a skid plate eventually, but I'll worry about that a bit later!