Hello, new here, got a 2002 vitara 4 door from my sister and im looking to offroad with it. nothing crazy just something i can take on mild trails and what not but still be good on gas and my wallet.

So what are some things i can do to make it less girly and soup it up to go offroading with on the weekends but not break the bank.

Im looking for a good site to buy some vitara parts too.

Any free mods you guys do to these? Any common problems I should look out for?

Take your sister out to dinner and thank her.
Everything you want to do to these vehicles will cost you, except enjoying them.  They are capable off road, in stock condition, and a with few modifications can go most anywhere. 
The only thing really girly about these is that metalic pink paint.  After that if it can climb it must be less girly???
The vendor list is supportive of our off road habits.  Low Range Offroad, and Trail Tough have been very diligent in being informed and making sure that they are providing what we need.

What engine, transmission and budget do you have to work with?

The best upgrade for these is taller tires to increase ground clearance because the stock 28"s are gonna get you hung up often. Depending on the engine / transmission you have, you could choose between 29" - 31" tires for them.

A 2" basic suspension lift would help with wheel clearances and a 2" body lift is cheap and just adds to your approach and departure angles.

Be careful romping hard off road because the front aluminium differential is prone to breaking.

http://www.rocky-road.com/sidekick-tracker-parts.html

Ok thanks for the tips.

Also is the 4wd light supposed to blink?

Nope - how frequently does it flash?

The GV has a pneumatic front freewheel clutch, and I suspect the flashing light is a side effect, rather than by design, but it indicates a problem with the pneumatic system - in this case, a leak - there is a pump (too small to really call it a compressor) on the back of the front bumper, and when 4WD is selected the pump turns on & off as required to maintain the pressure needed to keep the freewheel clutch engaged, the light goes out when the pump runs, so the bigger the leak, the more frequently the light flashes.

Nope - how frequently does it flash?

The GV has a pneumatic front freewheel clutch, and I suspect the flashing light is a side effect, rather than by design, but it indicates a problem with the pneumatic system - in this case, a leak - there is a pump (too small to really call it a compressor) on the back of the front bumper, and when 4WD is selected the pump turns on & off as required to maintain the pressure needed to keep the freewheel clutch engaged, the light goes out when the pump runs, so the bigger the leak, the more frequently the light flashes.

Just FYI, I pumped over 100psi into the expanding air mechanism and it did not fail. I did that a few times (on a damaged differential) and it never popped! I eventually maxed out my air compressor (150psi) and even though the rubber air line and air mechanism got swollen, still still never blew out.

I did that with the air mechanism out of the differential.

I am currently making a brass ring to keep the dog clutch permanently locked in my front diff.

It doesnt flash rapidly just once every second probably. Does this mean the 4wd isnt working?

How can I fix this is there a DIY guide out there I could follow? Im good with tools and have a large amount so I can do it myself

Once a second is frequent - find the pump and disconnect the line leading to the diff, plug the line and see if the light continues to flash - this will let you know if the leak is in the pump module or in the diff.

The 4WD may or may not be working, it most likely is, but you'll have to test it to be 100% certain - jack up one front wheel so it's off the ground, select 4H and switch the ignition on - do NOT start the engine - attempt to rotate the front wheel, if the freewheel clutch has engaged you will be unable to rotate the wheel.

I have a pictorial teardown of the pump over in another forum that you can use as a guide if your pump is the problem, which is quite likely, rust on one of the sealing surfaces seems to be common.

Or... if you don't want the expense of buying a new pump OR having a mechanic disassembling and reassembling your differential, you can also tack weld the metal spring loaded dog clutch into the 'locked' position (at four points around the diff) and then add manual locking hubs to your front axle.  

All the above requires is removing your front axle housing, splitting the diff from the housing, then having an experienced welder make four small tack welds to the dog clutch while holding the dog clutch up against the ring gear (while prying and holding the dog clutch into the 'engaged' position).  Then clean off the mating surfaces of the diff and housing, apply some RV sealer, allow it to set up, reassemble, torque to spec, add the manual hubs and you are on your way without any future concerns (or expenses)  of "air" components failing on you... again.

http://www.zukiworld.com/forum/suzuki-grand-vitara-vitara-chevy-tracker-(gen-2-platform)-1999-2005/suspension-upgrade-33541/

ok, thanks for the tips ill keepem in mind

We bought a 2000MY in 2008 to tow behind our RV & take off road.  Many, many times, folks in Jeeps, old Land Rovers and such asked us how we got where they were.  Just be carefull to pick your lines & approaches and you can do a lot with these units!  We've been to Dinosaur Nat'l Monument (a HOOT!), Moab/Canyonlands, Zion, AnzaBorrego and Mojave among others.  They're a lot of fun.  Just this year we got a Calmini lift kit (OK, not cheap, but well made), and also now have a winch to mount.  Just get some decent tires and go for it!

What he said.  I've done a 2" spacer lift and 29" muds, just 29" muds, 6" Calmini lift system and 31" muds, and now OME lift coils and 29" all terrains.

I hated the spacer lift due to the installation BS and love the OME lift coils thanks to the improved ride.  The 6" Calmini lift rode like shit on my '96 Tracker and was just a PITA.

However it came with the OME coils from the previous owner.  If I had to do it from stock myself I'd have just bought some 29" tires and put them on.  Trimmed the bottom edges of the fenders if they rubbed and called it good.  Used the $400 or so dollars the coils cost instead for better shocks/struts, fixing what needs fixed, and possibly a rear Lock Right locker.

I had a hell of a lot of fun in a '93 Tracker that was bone stock except for some 235/75R15 tires.  Open diffs and everything and I just blazed away bouncing along throwing mud, dirt, and sand.  Add a rear locker and I'd have been going everywhere.

Any more I'll go with a good set of tires, some body armor, recovery points, and a rear traction adder long before I consider a lift of any kind.