I have LWB 1999 GV with 2L petrol engine.
VIN:JSAFTL52V00105037
I want ARB front+rear diff-lock. What is modifications for installer difflocks? What parts i needed? Thanks.

Yankee Tim has them installed in his 99 Grand Vitara. He should be able to help you out.

Hey, does your Vit have shift on the fly like the GVs?  If so, I just submitted a tech article to Zukiworld detailing the Shift on the fly conversion.

If you follow it, you can use an ARB locker fro a late model Sidekick.  But be sure to get a steel housing first!

I have ARB's Front and Rear.  96 GEO Tracker.

I bought the whole kit from ARB.  It comes with both lockers, a air pump, air lines, solinods, switches and wirering harness.

First you install the lockers like any diff.  The only difference is that you will be drilling and taping a hole in the top of the diff for the air line to go through.

Next, you have to deside where you want your pump.  The pump and wirering harness is designed to go under the hood.  Because of lack of space, heat, mud, dirt, and other stuff that gets under the hood.  I mounted mine in the hollow space in the right rear quarter panel just above the rear tire.  I then cut some holes in the side panels and put speaker covers over them for air flow to the compresser.  So my pumps in a nice clean and dry place.  Also, I put a computer 12v fan by it to pull air across it to keep it cool for when I'm airing up tires.  Heat kills air pumps, can't be too carefull.

Once your compressers set run you air lines to your diffs.  

Rear:  Ran mine out of the quarter panel by the gas tank filler, over to the brake line and followed it down to the diff.  So, if I "Have something come up and rip my air line off" (what people say are the problems with ARB's)  I'm in a lot more trouble than just not having my rear locked.

Front:  I ran the hose and wirering harness down the quarter to the rocker.  Down the rocker and up into the dash.  The air line I brought out by the battery and fallowed the air vent down to the diff in front.  I have a Calimini up there.  Nothings getting that line!!

Wirer harness:  Like I mentioned earlier.  The harness was made to go under the hood.  So I had to lenthen the harness part that goes to the compresser and related parts (solinoids, pressure switch, pump).  Ran the rest of the harness throught the dash over to the left side (US drivers side).  The ARB switches fit into open slots on the dash like they were made for them.

Hope this all made sence.  Any more questions just ask.

A word of caution.  I am in the proxcess of trying to install an ARB on a 2002 Tracker and am having a significant proble.  The ring gear's inside diameter is not large enough to slide the ARB through to bolt it in.  It is a 12 bolt diff.  Don't know if the 99 Vitara uses the same ring gear or not.  Have not much help from either the vendor or ARB yet.  Investigating to see if the 98 and ealier Tracker ring gear will fit, I assume it has a larger inside diameter.  Any suggestions would be appreicated.

Since the compressor is on right side wheelwell, is there space on left side wheelwell? Maybe you can locate a small air tank there for extra capacity for airing up the tires?

To add, FYI - Cadi and Lincoln shock air compressors are small and can provide enough air flow while in parallel to pump up tires. You'll need 2-4 compressors, and 1-way air flow valves to make the compressors work together.

I've thought about putting in a air tank.  Just havent got around to it.

A word of caution.  I am in the proxcess of trying to install an ARB on a 2002 Tracker and am having a significant proble.  The ring gear's inside diameter is not large enough to slide the ARB through to bolt it in.  It is a 12 bolt diff.  Don't know if the 99 Vitara uses the same ring gear or not.  Have not much help from either the vendor or ARB yet.  Investigating to see if the 98 and ealier Tracker ring gear will fit, I assume it has a larger inside diameter.  Any suggestions would be appreicated.

I had not problem in my 2000 GV, with either the stock 4.88 or the Kick 5.12 which are the current gears.

The 5.12 Kick/Tracker ring gear fit.