Just Differentials 99 Land Cruiser UZJ100 Build Thread

[nitro-gear]

This is a build that we did a few years back at Just Differentials using many parts from Nitro Gear and Just Differentials. Carl is still daily driving this vehicle and it has been driven across the state of Washington many times and even down to Moab. Check out some of the pics and info below!

100s in the Hills Ouray, CO 2014, photo by Paul Gardner

This is a build that we did a few years back at Just Differentials using many parts from Nitro Gear and Just Differentials. This is the only vehicle in the Nitro /Justdifferentials fleet that was around since the beginning. Its been the platform for all types of new products from gears, suspension, etc. Its also daily driven and sees 20K annual road miles along with numerous trips around the northwest, Moab, Colorado, and more. Really a Do-All vehicle.


JTs Super Deluxe Suspension System Click link:
Which includes:
-JTs longer travel ball joint style Upper Control Arms
-Old Man Emu Coil springs & Torsion Bars
-ICON 2.5” Remote Reservoir Shocks
-Diff Drop
-Billet Icon Rear lower Trailing arms
-Timbren Front and Rear Bumpstops
-12mm BodyLift


Slee Skidplates and bellypan:
Custom 8” ifs & 9.5” rear diffs by Just Differentials:
-Nitro Gear 4.88 Ring & Pinions, Solid Preload Spacers
-Front ARB Air Locker
-ARB Compressor
-Rear OEM Electric Locker
-ARB Inflation Kit


Additional upgrades:
-TRD Supercharger w/ Unichip ECU
-Doug Thorley Headers
-IPF Lights
-ARB Fridge & Drawer
-WagonGear Tailgate storage
-Slee Winch Bumper
-Milemarker 12k winch
-Slee Rear bumper
-Dual Batteries
-Factor 55 prolink


We installed our Super Deluxe Suspension System with ICON 2.5" Remote Res shocks and Uniball UCAs on this build:

You can see the difference between our UCA and the stock UCA here:
(note, the new version now uses a ball joint!)

We went with 2.5" ICON remote reservoir CDC shocks, which we developed with Icon to use in our Super Deluxe kits with longer travel UCA's

Prototype Ball Joint Style Upper Control arms, specifically designed to work with Extended Icon shocks for maximum travel and ride quality

Optional ICON Vehicle Dynamics Billet lower rear control arms with our suspension system:

Even though the 4.88's do the trick to re-gear the LC for 35's, we wanted a to have a little more power. Enter a 10 injector TRD Supercharger from an 04 tundra, and a Unichip ECU:

 

[nitro-gear]

We upgraded the front and rear axles with gears, lockers, and some new bearings:

-Nitro Gear Front Ring and Pinion
-Front Master Kit w/ Koyo Bearings
-Front ARB Air Locker
-Solid Preload Spacer

-Nitro Gear Rear Ring and Pinion
-OEM E-Locker
-Rear Master Install Kit w/ Koyo Bearings
-Solid Preload Spacer

-ARB High Output Compressor w/ Inflation Kit

Took it out to Moab to play with it:

 

[nitro-gear]

Next up was a roof rack, we went with the Gobi rack for a few reasons:

-Low profile (no higher then an OE rack w/ the Thule snowboard carrier)
-Sunroof remains fully functional via a quick release panel, actually runs as quiet as stock (if not quieter) because of the included wind fairing
-They come pre-wired for lights
-Extremely strong, didn't even bend or budge with over 200 lbs on top
-Direct bolt on to OE mounts
-Very lightweight, we have no increased body roll with the rack on top

 

[nitro-gear]

Come see this rig in person at:

Join Nitro-Gear and Axle at the 2013 Overland EXPO!





May 17-19th - Site 42 - Mormon Lake Lodge - 2 hours North of Phoenix off I-17 near Flag Staff, AZ

​

- Product Announcements
- Cool Giveaways
- Free Stickers
- Axle Gearing & Product Discussions
- Checkout the Nitro-Gear & Axle Ford F450 4X4 RV on 42's

Nitro Gear & Axle - 5980 Goodwin RD Cashmere, WA 98815 - (509) 888-2953


Overland Expo - Overland Expo 2013 - 3400 E. Speedway Blvd Tucson, AZ 85716 - (520) 591-1410


Mormon Lake Lodge - 1991 Mormon Lake Road West Side Mormon Lake, AZ - (928) 354-2227​

 

[brevity_thing]

Yeah that's a nice 100 :Wow1:

How does it go, the supercharger with the gears and 35's?

 

[CreeperSleeper]

I would love to have this 100! One of these days I will be making an order for gears on mine from you guys...

 

[Scott Brady]

The Land Cruiser looks great. Everything you need, nothing you dont

 

[nitro-gear]

Yeah that's a nice 100 :Wow1:

How does it go, the supercharger with the gears and 35's?

Drives like a stock vehicle, if not better with the suspension. Carl daily drives this rig and has taken it over mountain passes, down to Utah and back with no issues.

 

[MattScott]

That's a nice build, I really like the roof rack.

 

[Backwoods Rambler]

The Land Cruiser looks great. Everything you need, nothing you don't

Lack of a snorkel noted! LOL :snorkel:

 

[krazytoy]

What size tires are you running?
Is the spare in the stock location?
What size is the spare?

 

[nitro-gear]

What size tires are you running? 295/70r18 (34x11)
Is the spare in the stock location? Yes, spare is a HZJ79 Steel skinny tall in the stock location, but spaced upwards.
What size is the spare?

Cant recall, but it is tall and skinny, slightly shorter than the tires on the truck.

 

[nitro-gear]

Transfer case gears

Also added before Cruise Moab 2012:

These gears replace your stock 2.488:1 low range ratio with a 3.116:1 ratio! The end result is a 25% gear reduction for your FJ80, FZJ80, or 100-series Toyota Land Cruiser, which combined with your automatic transmission's torque converter, results in almost a 75% total reduction for awesome Rock Crawling No replacement bearings, seals, or gaskets required. Installation is simple to accomplish using standard hand tools, shop press, bearing splitter, and grinder. Requires silicone, thread sealant, and replacement gear oil. Your automatic transmission fluid does not need to be changed
Made in Japan, OE Quality. Fits all 80, 100, 105 series Landcruisers.

• [FONT=&quot]1 - Differential Low Speed Gear[/FONT]
• [FONT=&quot]1 - Idler Low Speed Gear[/FONT]

We just installed these in our 100 series before Moab last week. Results are excellent. No change is made to high range, but the heavy Landcruisers really benefit from the lower-low range.
Retail $799 for the set. Attached Images

Mine's a 99 so with the 4 speed Auto, it pulls very hard on the 2-1 downshift if you stomp the throttle at say 10mph. This would cause some torque steer and have a tendency to burn off 1 front tire in loose or snowy/icy conditions. I noticed it pulled much straighter with CDL engaged. I installed the back half of an FZJ80 Transfer case to get the viscous coupler. All a direct fit, just had to shorten the driveshaft 3". Results are much nicer overall tighter feel, more controlled acceleration, much better traction in unlocked high range in snow. Attached Images

 

[zimm]

thats some awesome ****, there. it never occured to me to do the backhalf swap. now i have to look for and 80 tcase at the scrap yard.

before anyone thinks that price is high, price Marks reduction gears for the h55f tcase. i did for my fj40, and shied away. 800 is a bargain in comparison.

 

[Rot Box]

Agreed. Very cool