I pulled the forks apart on my new to me 05 450. The forks action was really poor and they had a ton of stiction that no amount of playing with the axle alignment could fix. Trying to set the sag was impossible. I found the oil was contaminated with water and even a little rust on the top of the springs. The inner bushings were junk and the oil looked like peanut butter. Really nasty. The springs in it were marked 48 (.48 I guess?), but the weird thing is the base valves don't have the spring like I've been reading about. I'm sure they're stock as the stem is still peened over the nut. Any ideas what "standard" style base valve fits into a 05 WR450? Or did the 05's not have the spring loaded blow off valve?