The older savage's run silver nuts on one side and black on the other, one was reverse thread, can't recall which. To be honest, it didn't seem to matter as they all would still loosen themselves. I got tired of dealing with two kinds of nuts and ended up with normal thread on both sides after changing out the axles.
From what I remember, the 17mm versions all had normal thread on both sides, which would make it difficult for you to deal with as I don't think you will find the larger 17mm adapter nuts in reverse thread anywhere. Some parts are hard to find these days regardless.
If you have a lower power engine, you should still be ok running 14mm anyway, but if you do want to switch to 17mm, there are a few things you can do.
1) go with the
HPI 17mm hexes, get 2 more of the
standard thread stub axles and get the
HPI 17mm flange nuts
2) go with
hot racing's 17mm adapter kit, you will still need to get 2 more of the
standard thread stub axles as they only come with standard thread barrel nuts to retain/alight the hubs properly.
3) get some cheap 17mm extension adapters and the longer XL standard stub axles. Modify the adapters like I did and do away with the smaller nuts entirely. I'm not finding the part number for the XL extended stubs that are standard cup size.
4) try to find a set of the 14mm hubs and a set of the reverse thread nuts if you still want to run those
5) Try to find a set of the 17mm hub conversion:
https://www.hpiracing.com/en/part/87229
I went with #3 on both my X and flux HP, both used the super HD cup/bones.
I did it first on my FluxHP as I snapped off the threaded part of the axle on a bad landing. I had the weird/cheap extensions in a drawer as they came on the flux when I got it. They were intended to use the stock pin and to widen the truck even more, but the design stinks and they were sloppy. I did away with them right out of the gate and went with the standard HPI hex/flange nuts. But, when I busted a threaded end off, I was kind of stuck as at the time, finding replacement stub axles was a bit of a pain. I needed the super HD stub axle that had the larger cup as my flux had the super hd bones on it.
With the hubs cut and modified, I had removed the extra spacer piece that comes on the wide bones, then much more of the hub would fit on the shaft snugly. The wheel hex retains the pin, so there's no need for a nut on the axle itself at all.
These are similar to what I used:
https://www.ebay.com/itm/Aluminum-1...-30mm-For-1-8-RC-Car-Spare-Parts/264739092733
However, you need to get the extended standard cup sized shafts to work with them the best, which I'm not finding a part # for at the moment.
#1 or #2 are likely the easiest route to take as you can still find standard thread short axles around if you look, found a set on ebay at least.
