Since these trucks are still popular, and I see a lot of them going to first time builders, I thought I'd post a build supplement, and share some observations that owning these for 8 years has given. I will follow up with a basic improvement article, too. But, for now here is a basic walk through for your first Wild Dagger/Twin Detonator/Double Blaze/Dual Hunter, and also applicable to the Blackfoot X, Overlander and Mighty Bull. I believe, for as many reasons as you can think of, any RC anything land borne needs ball bearings, and with the way now you can find bearings for a buck each, there is no excuse. So, step one, is to disassemble the factory assembled (for your convenience :willy) gearboxes, and install ball bearings. You will need eight 11 x 5 bearings for each gearbox. There are instructions in the back of the manual, showing how to tear down the gear boxes, if you are unsure. For anyone who has never seen inside one of these, they are huge. Reportedly, the housing will crack before a gear lets go, in a well maintained WD series truck. Man those gears are big. A set of ball bearings, good grease, like Tamiya Ceramic, and keep an eye on the wear for the aluminuim pinions, and they last. Now, replace all the plastic and sintered bronze bushings you can find... Two in each cluster gear, and one in each side of the casing, either side of the diff. Speaking diffs, for speedy big wheelers, you don't want to lock your diffs, but slowing the motion is a little beneficial. These diffs are not sealed, like 1/8th gas cars, so diff oil will leak out. What does work, is a product made here, in Australia, by Bostik, called Blu-Tac. It's a grey putty, and is used for sticking up posters, and the like. When it comes in contact with oil or grease, it turns iinto the gluggiest substance known to man. Perfect for slowing your diff action!. There has to be an equivalent in your country, and it should be similar in behavior. First up, remove the 3 screws, that cap the diff hemisphere, remove the cap, the thin thrust washer, and the closest side gear. Take your sticky substance, and make a thin sausage, and place it around the sun gears. Not too much, but a little more than pictured. If you make one diff stiffer than the other, make that the rear gear box. Now, put it all back together, and re-assemble the diff, and the bearinged gearbox. Now, do the other!.