Drive shaft disconnect

I had one on my S10 PU and hated it. periodically would slip out of mesh. you would hear a little pinging leading up to disengagement. and to engage it you have things turning then mash/grind the gears together. do yourself a favor and have somebody show you this engagement before you consider buying one. If you haven't bought a new toad yet, you would be foolish to get something requiring one, JMHO.
My BIL had one and was satisfied but he was willing to crawl under the vehicle periodically and clean things up, grease or whatever.
bumpy