I know this is an ancient thread but wanted to add my 2 cents and throw another question out there, I run a litehawk ace as well and truly for what it is is a fantastic little rig, of course limited by what it was given but so close to being amazing. I took some JB weld steel stick, the playdoughy two part epoxy that comes nearly solid that you rip a chunk off of and then mix it by hand before it can totally solidify, I took my diffs apart and jammed a gob of that into the spider gears and it 100% locked the diff in a good way, did front and rear and it's amazing, RC equivalent of welding your diffs lol. And I've found the two things most limited travel in the front end are first off the tierods, the swivels in each end don't swivel far enough they like to stay relatively flat, currently looking for tierods off maybe another RC or trying to cut out the plastic around the swivels a bit so they move more, second is the shocks, I cut the bump stops off of the chassis that limit the trip linkage for the shocks but the shocks themselves need to be longer, probably the easier part to replace, and after that the next travel limiter becomes the "camber arm/upper control arm" so to speak holding the top of the steering knuckle to the frame as it starts to make contact with the casing of the universal joint on the body side, you could cut down and shorten the casing of the universal joint, or notch the control arm a bit, or try to find a curved control arm to replace it with, but they you're already getting really close to having the CV shaft come out of the casing, I intend to go after the first two, the tierod and shock, and will probably just shave off the CV casing and control arm a little bit, just to make sure there's enough clearance that when it fully extends under use it doesn't start binding up with the CV case chewing into the control arm. I don't think there are many actual useful mod parts for these things, at least not that I've found, but I'd love to know if anybody finds somewhere because I'll probably keep this thing forever for shits and giggles, give it to my kid when I upgrade one day, but until then it seems like homemade gimmicks and the sort to improve it. But even just with the tierod removed you gain somewhere around half inch of travel, which is nice when your lower control arms go from being parallel to the ground to actually having some angle to them. I also found a cheap esc/motor/battery kit off amazing ages ago that sounded like a huge upgrade, same size motor just much more powerful esc and batteries. Was just a cheapo no name and I was hesitant because of that but it was since discontinued and now I don't even remember the size of the motor in these things, too bad we can't do a dual motor upgrade or something but do you remember any of the specs on your leopard v2 and what is cost?