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How-to guide on replacing diffs found on another forum:
> PLEASE READ FIRST: > Know exactly what you are getting yourself into BEFORE > doing this modification. The higher ratio gears will > make you rocket off the line with the stock size > tires, however your RPMs will also be a bit higher > than "usual" at speeds of 65MPH or more. > > Just to give you an idea of how the RPMS will be: > Although my speedometer says 85MPH, I'm actually doing > (roughly) 77MPH. My RPM gauge is definitely correct, > so at that speed, it stands around 4000 rpms. It does > give a whole new meaning to 4th and 5th gears! > > WARNING: If you are going to do this, make sure you do > BOTH the front and the rear gears at the same time. If > you do the rear first, and you're coming home drunk > one day and accidentally engage the 4X4. Well, guess > what? You'll be leaving your drivetrain behind you on > the floor, and you'll break every damn component from > the front all the way to the back. You have to have > the same gear ratios installed in the front AND > back!!!!!! > > Although these upgraded gears are necessary if you > have a lift with larger size tires, if you install > them on your stock vehicle, you'll have successfully > turned it into a Street Screamer. > > If you've read this far, good. Here's the type of > vehicle you absolutely need to get the different parts > from: > > 1996, 1997, or 1998 1.6L JAPAN-MADE Suzuki SideKick > (read: not CAMI built), with manual transmission. > Canadian Trackers and any SideKick with the 1.8 & 2.0 > Liter motors will NOT work. > > You can tell it's Jap made because the VIN # ALWAYS > starts with JS. > > For the rear, take the entire 3rd member. It's the > same 12-bolt carrier that is in the GV, except it has > a ABS tone ring (ours is on the outer bearing > retainer), and the housing has some unneeded mounting > bosses. If the Kick doesn't have ABS, don't worry, as > the GV is 4-ch ABS and uses tone rings on the axles, > not the carrier. > > For the front, grab the entire 3rd member (INCLUDING > bracket, nuts and bolts), the driver's side inner axle > shaft, the passenger side CV shaft, and the manual > hubs. Considering everything will be on the same donor > truck, getting in one shot would be the most > practical, and will get you your best price. > > And now, without further ado.... > > INSTALLATION INSTRUCTIONS - REAR > > Please keep in mind. All these instructions are > assuming that you are somewhat mechanically inclined > and are familiar with different terms. Also, the use > of power tools and a lift makes things a whole lot > easier! > > We'll start off with the Rear b/c not only will it > "pop your cherry", but it will make the most > difference b/c our vehicles are RWD. > > Things you need BEFORE HAND: > The rear pig (duh!) > At least 2 quarts of 80W90 differential oil > Big ass sledgehammer > Razor Blade > RTV Sealer > > Again, let me emphasize, having a lift and using air > power tools will definitely make the job much much > easier: > > 1. Drain the differential oil from the pumpkin. > 2. Pull the wheels. > 3. Using the 12MM wrench/socket, pull the 4 bolts on > the back of the brake mounting disc thing...this holds > the bearing cup to the axle. > 4. Put one wheel back on, and thread like 3 lug nuts. > 5. Take the big ass sledgehammer and stand under the > car. Hit the living bad out of the tire from the > inside out, until, like magic, the axle comes loose. > Note, this step is a pain in the ass, and you have to > hit the tire HARD from the inside (so imagine standing > underneath in the middle of the car slamming the > hammer against the inside part of the tire). Wouldn't > hurt to disconnect or loosen the brake lines so that > you have more room to slide out the axle. Once it > gives, slide it out 3-4" the most. Do this for both > sides. > 6. With the axles out, unbolt the driveshaft from the > back. > 7. Unbolt the 8-10 bolts on the housing to loosen and > remove the pumpkin. > 8. Using the blade, clean off the sealer from the > surface where the pumpkin was removed from. > 9. Installation is the reverse of removal! Don't > forget to add Differential oil back in and check that > the ABS Sensors didn't become loose! > > Just remember to bleed the brakes if you loosened them > (might want to add some brake fluid). ALSO, REMEMBER > NOT TO ENGAGE YOU 4X4 IF YOU HAVEN'T INSTALLED YOUR > FRONT GEARS YET!!!!! You'll destroy your car if you > do! > > INSTALLATION INSTRUCTIONS - FRONT > The front will take more time, but is straight > forward. > > Things you need BEFORE HAND: > The front differential (duh!) AND BRACKET, INCLUDING > ALL NUTS and BOLTS > At least 2 quarts of 80W90 differential oil > Razor Blade > RTV Sealer > CV Boot Clamps > Passenger side inner axle seal - SGP Part #: > 09286-64001-000 (this is for preventative maintenance. > They are prone to wear out and leak.) > The inner axle shaft > The CV shaft > and the manual hubs > (the last 3 parts are to eliminate the bad-on-the-fly > design. This reduces the rolling friction, thereby > making the wheels spin more freely b/c of no > resistance, hence more speed!!) > > First, the Driver side: > 1. Drain the front axle assembly. (Don't forget to > refill at the end!) > 2. Disconnect the air line and diff breather. > 3. Unbolt the driver's side CV at the flange. > 4. Unbolt the diff mounts. > 5. Remove the 4 bolts from the driveshaft and use a > bungie to hold the driveshaft up and out of the way > (do not pull it out of the t-case) > 6. Now, I save some time by wiggling the assembly down > and pulling the driver's side CV stub out (it should > just pull out). This saves the step of removeing the > hubs and pulling the CV shafts out, but it's a little > more tricky, requiring an extra set of hands. > 7. Once it's out and on the bench, use a dead blow (or > rubber mallet) and knock out the inner shaft by > hitting the flange. > 8. Unbolt the diff and remove. > 9. Clean the surface of the new diff and where it will > be installed (there will be gunk there from the > previous diff.) > 10. Install the new Kick 5.13 pig and bolt down (Make > sure to use fresh RTV sealer.) > 11. Install the Kick inner shaft, hitting with a dead > blow until fully seated. (If you compare the shafts, > you will notice the size difference, with the GV being > longer.) > > Now, the Passenger side: > Compare the two CV stubs. Notice that the GV is > shorter than the Kick. The difference in the two side > lengths is because the airdiff moves the centerline > over about 1" towards the passenger side. The > passenger side is a floating stub, and the shorter it > is, the weaker it is. YOU ARE MAKING THE FRONT END > STRONGER! > > What you want to do here is swap the Kick stub onto > the longer GV mid-shaft and outer CV. > 1. Carefully cut the band around the CV boot. > 2. Remove the GV's stub/ CV cup and replace it with > the stub/cup off the Kick, making a "hybrid" CV shaft. > Use the new clamps on the boot. > 3. This would be a good time to replace the passenger > side inner axle seal. The Driver's side doesn't have > the same problem, as it has a bearing supported inner > shaft. > > With that done, re-install everything back into your > GV. The front 3rd member has a center mount. This > mounts to the GV crossmember. I find it easiest to > remove the two bolts from underneath the crossmember, > leaning the center mount on the diff, and using the > bracket from the sidekick differential. IMPORTANT: The > GV bracket will NOT work. Make sure you have the nuts > and bolts from the sidekick bracket. If not, Home > Depot has them. I think the size is 5/8" X 2.5" > (you'll need 2). > > 4. Now the hubs. This is REALLY tricky. Ready? a) > Remove bolts from existing lock-out caps on the hub. > b) Making sure the hub is in the "open" position, > install hubs with bolts and tighten to spec. > > 5. Finally, stick a golf tee into the rubber > differential breather hose so it can build pressure > and make the 4WD light come on. Also, plug the metal > air line. You can use a small piece of rubber hose > with another golf tee at the end. > > Done!! If you want 4wd, just lock the hubs and put it > in 4wd. With hubs locked, you can shift on the fly, > just like the GV does now. And to prevent dirty > fingers, pick up a plastic hub turner. > > Happy riding!
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