I need a tow hitch. 2004, 4 door, 4x4 blazer WITHOUT the tow package. I'm going to be picking up a boat soon, obviously need to tow it. Class 3 hitch is a must, tell me my options please.

 

Try a PnP I got mine like new for $25

 

I just put on a Valley Hitch
Liked the fact that it was not as boxy looking as most other brands
Most of the used in my area are usually all rusty and crusty so after I installed it I spayed it heavily with rust proofing

If you have a bumper hitch the wiring should be there for lights(standard 4 wire) ,just need to install a plug
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http://www.vtowing.com/ISHEETS/81690.pdf

 

Grab a factoy hitch from a local yard and bolt in place.

 

Either a junk yard like Pull-A-Part or your local Craigslist will be your best options. I would say eBay, but shipping will be the death of you.

 

I've been looking for one, as well... there was one I saw on a Toyota.. it was a Class III receiver, but it also had a mount for a spare tire which swung out in the same fashion as a spare tire carrier. Had no luck finding it online yet, though.

 

Don't forget your wiring harness for trailer lights.

 

how difficult is the wiring?

 

Look up behind your bumper there may be a harness there already. GM installed them in most blazers just cause it was part of the wiring harness. Mine came without a factory tow package but there is a 4 wire plug tucked away nicely from the factory

 

It's not. Every wiring kit has instructions.