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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. |
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| 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) |
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| 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 |
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| 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 |
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| 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 | |