to remove the front brakes you need a 7mm hex socket and a 10 mm hex socket
To change the oil filter on a 2008 2.4L Vue or Sky you need a special short 32mm (1.25in) socket with a 3/8 in drive. Here is a package that I found on eBay for the filter element and socket. Good luck! http://cgi.ebay.com/ebaymotors/GM-oil-filter-&-socket-wrench-32mm-Saturn-L-LS-LW-Vue-_W0QQitemZ120330902655QQcmdZViewItemQQimsxZ20081109?IMSfp=TL0811091110006r29122
It is a 36 MM socket
You will need a 35 mm socket.
Is this the front assembly or the rear? I can't say for sure on the rear, but on the front, you will need a very large socket for the nut at the outside of the hub assembly. I don't recall for sure, but I think it's like 30mm. Check before you buy a socket for it, as they are expensive. Also, you may want to have a pickle fork to break the ball joints loose up front. Aside from the large nut at the outside of the hub assembly, the largest wrench you will need is 19mm. If you can find a Chiltons manual for a Saturn SL, it will walk you through the entire process of removal and re-assembly. . Found this link to change a Saturn S-Series front hub. It worked perfectly as all the pictures were extremely helpful. I actually pressed new bearings into to the existing hubs which is not recommended by Saturn but worked out OK for me. http://www.xwarlordx.com/twin_cam/tech.html
36mm
30
In order to change the front shocks, you will need a ratchet and socket kit. You will also need some replacement shock absorbers.
36mm
9mm hex socket bit
3/8 Allen wrench socket
Might be useful to precise what model you need this for... Saturn relay 2005