Phase III


When I finished phase II I had a very capable 4runner that would take me most of the places that I wanted to go. Most people would add armor and longs and call it good. However I tend to go camping down difficult trails and I am almost always alone. Due to this I was very concerned with the strength of the mini truck axles.

In the front axle the birfield is the weak link. If I put in longs then the differential is the weak link which I did not like due to the cost of a 5.29 hi-pinion elocker. In the rear axle everything was wrong. First the axle is a semi floating axle. This means that if anything breaks the rear wheels will not function properly in order to just roll. Bad things happen like the stupid wheel and inner axle falling out of the housing. Also the rear shafts and the differential are about a tie in the strength department, so we get back to the cost of breaking differentials. I did not want to carry a rear shaft and differential in the back of 4runner, because it is already more than crowded when camping.

For my next axles I wanted full floating, selectable lockers, light weight, wider, stronger, cheap and still have good clearance. Well doesn't everyone want this, it would the perfect setup, but unfortunately it did not seem to likely. So I started researching axles and did so for about a year.

My first thought was Dana 60 front and rear. But these axles are expensive, wide, heavy and require reworking the entire 4runner from steering to tires. They would also make it get worse milage which was a big deal because this is my daily driver.
My next thought was to go with a Diamond housing with 8.4 Tacoma differentials and make the rear full floating. The big problem was the money, silly house payments.
Next I was going to just get a Tacoma rear axle and convert it to full floating with FROR's full floating kit. This would give me the 8.4 differential which is considerably stronger than the V6 differential and even if something broke the truck would still roll. Then I would put longs in the front and buy a used 5.29 hi-pinion elocker from my brother for $700 for a spare. This setup would be strong and with the spares would be very nice but the cost was again getting high. Although I was well below the cost Diamond axles.

While talking with my brother time and time again we kept getting back to land cruser axles. The rear differential in a FJ80 has a 9.5 differential with a elocker. This is a big jump up in strength compaired to the V6 differential. It is also a full floating axle with disk brakes and a very nice emergency brake setup. The bad part was that the differential is not centered which will cause the driveline to hit the gas tank.
We finally came up with a plan so that I could have what I wanted under my 4runner for a relatively cheap price.

Rear Axle
I will have a FJ80 axle centered so that I can use two short side shafts, this will make it about 57 inches wide. With 1.5 inch wheel spacers it will be 60 inches wide which is a little wider that what I have but not so wide that it will look weird and cause police bug me.
$600 - FJ80 rear axle
$150 - Center axle
$500 - 5.29 gears
$100 - New bearings
$150 - New brakes
For $1500 I will have a rear axle that is full floating, selectable locker, light weight, wider, stronger, cheap and still have good clearance. Not to bad seeing how a V6 differential with a ARB sells for $1500

Front axle
A FJ60 should fit nicely into my front suspension with out widening my front hanger. I can buy another FJ80 rear axle for the 9.5 elocker and spare parts for the rear axle. The FJ80 differential bolts into the fj60 housing. My Six Shooter knuckles and arms also bolt onto the Fj60. The best part is that the 9.5 differential should hold up to longs better than the hi-pinion especialy in reverse while pulling on another rig.
$300 - FJ60 front axle
$600 - FJ80 rear axle
$900 - Longs
$100 - Draglink and tierod
For $1900 I will have a front axle that will be stronger, wider and have a matching differential to the rear so if I ever need to carry a spare they will match.



The Build


Build Info This will be done in three phases
The completion date should be 2011
1) Rebuild the engine, transmission, and transfer case (2009)
2) Build and install the rear axle (2010)
3) Build and install the front axle (2011)

 
Drive Train Engine 22re(rebuilt) Installed
Transmission R151F Installed
Transfer Case 4.7 Forward Shift 23-spline Installed
Front Drive Shaft Square tubing & welder Installed

Front Axle Axle Housing FJ60 Phase 3
Differential FJ80 Elocker 5.29 Phase 3
Inner axle 30 Spline Longs Phase 3
Steel Braided Brake Lines MarlinCrawler.com Installed

Rear Axle Axle Housing FJ80 (centered) Phase 2
Differential FJ80 Elocker 5.29 Phase 2
Steel Braided Brake Lines MarlinCrawler.com Installed
Shock Perches Big Rocks Installed

Steering Knuckles and Arms Six Shooter Installed
IFS Box, Rebuilt & Tapped Trail-Gear Installed
Rock-Assault Ram Steering Trail-Gear

Installed
Front Suspension 14" Bilstein Shocks MarlinCrawler.com Installed
Spring Bushings MarlinCrawler.com Installed
Tubes & Jigs MarlinCrawler.com Installed
Shock Hoops Big Rocks Installed
Steering Box Support Big Rocks Installed
Polly Bumpstops Big Rocks Installed
1" Drop Hanger Big Rocks Installed
Bump Stops 2x2 Square tube, some plate, and a welder Installed
Leaf Springs 1&2 = Top 2 leafs from 51" rears
3&4 = Cut leafs from 48" rears
5th = 3rd leaf from 4x2 S-10
6th = Misc Toyota leaf

Installed
Rear Suspension Spring Hangers Big Rocks Installed
Shock Cross Member Big Rocks Installed
Spring Bushings MarlinCrawler.com Installed
Rear Shackle Hanger MarlinCrawler.com Installed
12" Bilstein Shocks MarlinCrawler.com Installed
6inch Shackles (eye2eye) Made Them Installed
Leaf Springs 1&2 = Top 2 leafs from 51" rears
3&4 = Cut leafs from 48" rears
5&6 = Cut S-10 Main Leafs
7th = 3rd leaf from 4x2 S-10

Installed
Misc Lifts 2 inch Body Lift 4crawler.com Installed
2 inch Gas Tank Lift Rebuilt cross members

Installed
Street Tires Rims 15x7 Aluminum Installed
Tires 32x11.5

Installed
Off Road Tires Rims 2.5inch BS 15x8 Steel Rock Crawler Installed
Tires 37x12.5 GoodYear MTRs Installed