My 360 Disk Drive died recently and instead of paying the 130$ to fix it, I got a replacement drive and put that instead and it works. My question is that knowing that people who mod chip their 360's and get banned off of live, will replacing my disk drive get me banned of Xbox Live? 

I doubt it. Never heard of it happening, then again I'm not entirely sure I've ever heard of a disc drive being replaced. Usually people just buy a new 360.   :P

Well, did you get an "official" replacement drive? Or did you just throw any hard drive in there? Because the 360 is very specific as to what HDD it will use, and if you used a non-official one that means you had to mod your console to get it to work. So in that case, yes, you could probably get banned. If you bought an official drive, I think you may have to be connected to xbox live in order to play DLC and arcade games (that may just be true for a new 360 only, not sure). 

I assume he's talking about DVD drives.  No way you can know OP, I don't think hackers even know what all MS can detect, and they tend to ban in waves.  People have been banned for modding their drives, but it's not clear how MS detects it.

I have a theory, that your DVD drive might report a different serial / other info to your mobo which could set off flags, but who knows.

He said Disk Drive not HDD. Two difffrent things :) One reads CD/DVDS and the other stores Data :)

Though to answer the original poster, since ive made a post now, im not honestly sure. Ive never heard of someone getting banned for it (and theres no real reason to get banned for it). But you could check the Xbox live rules (somewhere on xbox.com) they list all the reasons explicitly there.

Ah, my mistake. Whenever I see someone refer to a drive as "disc drive" I assume hard disc drive, not dvd disc drive (since, well, that's repetitive as hell).

Yeah, I don't think it should be much of a worry. It would be a shame if a disc drive could be the cause of a ban. A HDD is a bit different. Check the rules, but don't stress over it.

130 dollars to get the hard drive fixed? last i checked it only cost about 100 or so to get the 360 it self fixed, I paid 50 which later got refunded with e74 became covered under 3 year...so its funny that you some how think you'd have to pay 130 dollars to get it fixed by microsoft.... so at that point i start to disbelieve you.

Other then that you won't get banned for using your own harddrive since you have to use a specific hard drive model and brand...so...

Yes you will be banned forever, and I know this for a fact.