I purchased my boat last year and have no idea when the last time the impellar was changed so I'm gonna attempt to do it. Any advice on what to buy? I have found a couple different kits but I'm not sure if they are the same. Is one better than the other?

https://macombmarineparts.com/produc...ducts_id=34755

http://www.macombmarineparts.com/pro...oducts_id/9606

Also is it necessary to get the alignment pins and sterndrive mounting gasket shown on this site?

http://sterndrivetools.com/Replace%2...0Assembly.html

I hate to do this since the drive fluid was just replaced but I don't want this thing going out on me this summer. Any other advice is more than welcome.

all you need is this kit,the housing on your lower unit is stainless steel and usually never need to be replaced unless its all gouged up inside..

http://www.go2marine.com/product.do?...F&WT.mc_id=gb1