Hi, I have a 92' astro 2wd extended van with the round air cleaner, don't know if z or w. The other day it kicked into neutral while at highway speed. I didn't think too much about it. Today it did it again, bucked a couple of times and acted like it was in neutral permanantly. When it is in drive,reverse1,or 2 it works fine just no o.d.! The tranny is just treating o.d. like neutral. Also the van has 367,000 miles on it so I don't want to spend a ton of money on it, so i hope someone will say I can just drive it in drive and be fine! I doubt it though, Ha Ha! Thanks for any info.