I had one of those trucks when they first came out. I bought the pro version with the
aluminum arms. I don't know which version you have, but the first batch of axels broke
at the drive pin. They were overhardened from the factory. Called HB, no problem they
sent the new axels right away. You can use the shiny axels off a Losi LST, just the bone
portion, and use your existing axel. Stronger than stock. Also you may want to double
up on the drag links, they bend pretty easily. The diffs are filled with very light weight
oil, like 40w shock oil or something. Try 5-7-3 in the diffs. I also increased shock oil
to 50w all around. Keep than long chassis from bottoming out on the takeoff of a jump.
Junked the stock HB motor for a Sirio 27xl pro version. Non-pull. Fast as hell. First time out
at the track qualified 2nd for the a-main, out of 3 monster truck outlaw classes. After a twenty
minute main I took the win with a lap and a half over second place, three laps over the rest of the
field. Awesome truck, just too radical of a design for some people. I loved it. I sold it to my
friend, and he just can't drive it enough. If you need help with that truck let me know, my friend
and I have alot of stick time and tuning with that truck, to make it handle much better than stock.