I have a pair of 180 grizzlys and was thinking of replacin the bushings in them, i had a go at taking the trucks apart but when it take the hanger off it scrapes the thread of the king pin. Im not sure if the pin is meant to come out first cause its jammed in reall well bit of a nooby question but dont wont 2 skrew up the trucks.
i have those trucks but they dont scrap that hard.. but that surly isnt health just fiddle with it.. try pusing the hanger back into the socket thing whilst pulling it off the kikngpin.
its all good man just smash it around, they are built solid and can take a scratch here and there... think about it, do you really need to use the thread on that part of the kingpin? if you need to do your nut up all that way then you wouldnt be able to put your trucks together!
skate gear is designed to get smashed around dude, dont be afraid to make it look used and abused!
The best way to learn shit is to break it and see whats inside. Get all nitty gritty.
If it's so delicate that you can't get rough there's no way it's gonna stand up to the punishment you should be dealin out while skating.
wel i got the hanger off yesterday just misses the thread now i just have to pull the hanger out of it socket hole and it comes off well enough and putting it back on i have to push really hard on the hanger so it slots ovever the king pin i think the problem in the first place was that the hole where the pin goes through the hanger was a dodgy (cast trucks sometimes hav flaws) and was a bit too small but the firsrt time i took it on and off must hav grinded the bad bit off.
Problem solved =D