New axle housing arrived today and didn't have the problem of the original one so I got to finally put 4WD on and properly try the car. Which resulted in both good and bad news.
I expected to only run on some driveways, but noticed that earlier in the day the snow is currently pretty good for driving on, the car didn't sink much. So I blasted around in the forest. Though prior to getting there I got a chuckle out of driving maybe 10km/h on some gravel that was frozen from below but not above, thus being ultragrippy with soft tires. So I applied moderate brake to stop the car and ended up somersaulting and ending up belly up. That's what ya get with too much traction and not enough rear weight :lmao:
At the forest it was nice going. Didn't get permanently stuck at all during the run except the few times I rolled over. Spots where the sunlight came through were hazardous since they were softer than the rest. I blasted around on the "snow dunes", hit a few young trees, climbed a few rocks, tried to climb some snow walls. Fun times, and ended up with the car full of pine needles.
Took some video too but it's not very exciting, especially as driving one-handed isn't my forte.
Then the bad news. Well, looks I like put the front axle back together slightly wrong when I swapepd the axle housing... I put in the wrong and too long screw on long end of the axle truss. I only noticed this when I took the front axle apart again to check on the diff locker after run out of paranoia, and the longer drive shaft now has two grooves in it, the deeper one from the truss screw and apparently it pressed on the axle enough so that the two screws that go through the housing to the link holders also rubbed on it. I hope the shaft will still hold up with the grooves, as the deeper one took maybe 1,5mm off the diameter. The CVAs are coming but it'll take a couple of weeks.
But there's also a problem with the shorter drive shaft. The pin at the end has moved so that it's only maybe 1mm visible at one end, the rest being at the other end. Not sure why that happened, but it seems rather stuck like that, and couldn't budge the pin even with a hammer and I don't have any special tools for extracting/reinstalling dogbone pins. As such I'm not sure how I'll get it where it is supposed to be, naturally I can't really use it like that. I think even on the long shaft the pin is slightly longer on one side than the other, but at least it still grabs the wheel axle shaft on both sides.