Have a 1996 blazer. Is it me , or do other people have trouble snapping the master cylinder cover back on? Seems like 3 out the 4 plastic tabs snap on. I would hate to have water from humidity getting in there. Thanks for any advice or after market fixes. (I'm not all thumbs, so I hope others have encountered this) !

 

2 hands, grab the master cylinder reservoir & cover, thumbs on top of the cover at the rear corners, snap both back ones at the same time with your thumbs, then the front ones.

 

make sure you have the rubber in the cap and not on the master then push it on. makes it a bit easier that way