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| Tacoma Dual Transfer Case
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In 2002, Marlin Czajkowski developed the world's
very first Tacoma/4Runner Dualcase Crawler. Based on the bullet-proof double
roller MC08 Billet Aluminum Dualcase Adapter, Marlin expanded his product
line to include the Tacoma-series drivetrain, and ushered in a whole new series
of adapters. Marlin Crawler is the first company in the world to offer a Dual
Case setup in a Tacoma/4Runner by placing a Hilux Gear Drive Redution Housing
in between a Tacoma/4Runner Transmission and Chain Drive Transfercase. This extra
Low Range unit comes standard with a 2.28:1 Low Range, and can also be fitted
with our 4.70:1-TS™ Gear Set.
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In
order to install a Hilux Low Range Reduction Housing between a Tacoma/4Runner
Transmission and Transfercase, two adapters are required to get the job done.
For the front adapter we use a 1/2" thick Billet Aluminum Plate to mate a Hilux
Reduction Housing behind the Tacoma/4Runner transmission. And for the rear
adapter we use another Billet Aluminum Plate to bolt a Tacoma/4Runner Chain
Drive Transfercase behind the Hilux Low Range Housing. And what we end up with
is the Marlin Crawler TacoBox™, a fully assembled Dualcase Unit.
The heart of the TacoBox™ is the rear
adapter, the Marlin Crawler MC09. This 6th generation Dualcase Adapter features everything
you'd expect from the quality and reliability of Marlin Crawler. First we machine a block of
solid Billet T6061 Aluminum on a CNC mill. Then we use our 32-Ball Double
Roller Bearing, the same double roller bearing that has proven itself
since 1999. Next we create a Heavy Duty Oversized Coupler and Heat Treat it
for the ultimate in strength and reliability.
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New Rotated MC09-R10 with
New Rotated 34-4GT-R10
Click for 1300x1300 Image |
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It is nice to know that the Tacoma TacoBox™ MC09 Adapter features the same exclusive advanced
reliability design as the Hilux Adapters, something Marlin created over 7 years ago! So if you have ever
wondered why the Marlin Crawler has stood out from the rest then I invite you to review the following
article:
Understanding the Success of the Marlin Crawler
The Tacoma TacoBox™ is designed from the strongest and most reliable Toyota Dual Transfer Case System
in the World.
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The end
result is the MC09 Adapter. This adapter allows a gear drive reduction housing
to mate to the front of a Tacoma/4Runner chain drive transfercase.
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New Rotated Front Adapter Plates |
The front Adapter
Plate is much more simple than the Rear, but it plays an equally important role.
Shown to the left is our New 34-4GT-R10 Adapter. It is just like our
34-4GT adapter (invented in 2002), but it has a
Rotation option of 10-degrees to help get the front driveline up and out of the
rocks. When combined with the MC09-R10 adapter, a total rotation of 20-degrees
is achieved. Like the Rear Adapter, the
Front Adapter is made from a solid piece of Billet T6061 Aluminum. Again Marlin
realized that the coupler is perhaps the most important component of these kits,
so he built the adapter around a special heat treated oversized coupler. This
Front Adapter plate (like the 30-4GT) allows a Hilux Gear Drive Reduction Housing to be
bolted directly behind a Tacoma/4Runner 5-speed or Automatic Transmission.
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The Front Adapter part numbers are designated to eaisly identify each Application:
- 27-4GT -> 2.7L Auto or Manual Trans to 4-cyl Gear Drive T/case.
- 34-4GT -> 3.4L Auto or Manual Trans to 4-cyl Gear Drive T/case.
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Installed in a 1999 4Runner. Click above for Pictures!
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TacoBox™ is available for all 4WD 4-cylinder (2.7l) or 6-cylinder (3.4l),
manual or automatic transmssion, Right-Hand or Left-Hand front output, IFS or
SAS (Solid Axle Swap), 1995.5-2005 Tacoma or 4Runner, 2.28:1, 4.00:1,
4.70:1, 4.97:1 available Gear Ratios. The TacoBox™
is a highly versitle Dualcase Marlin Crawler that will work with nearly
any type of drivetrain under your Tacoma/4Runner today. |
| Final Drive Crawl Ratio Chart |
| Left-Hand Setup (Chain Drive) | Right-Hand Setup (Gear Drive) |
TacoBox™
Ratio | Ring & Pinion | | 5 Speed Manual | 4cyl
(W59) | 6cyl
(R150F) |
| Auto
4 & 6 cyl
(A340x) |
| 5 Speed Manual | 4cyl
(W59) | 6cyl
(R150F) |
| Auto
4 & 6 cyl
(A340x) |
| 1.00:1 | 4.11:1 | 42:1 | 40:1 | 30:1 | 37:1 | 36:1 | 26:1 |
| 1.00:1 | 4.88:1 | 50:1 | 48:1 | 35:1 | 44:1 | 43:1 | 31:1 |
| 1.00:1 | 5.29:1 | 54:1 | 52:1 | 38:1 | 48:1 | 46:1 | 34:1 |
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| 2.28:1 | 4.11:1 | 95:1 | 92:1 | 67:1 | 84:1 | 82:1 | 60:1 |
| 2.28:1 | 4.88:1 | 113:1 | 110:1 | 80:1 | 100:1 | 97:1 | 71:1 |
| 2.28:1 | 5.29:1 | 122:1 | 119:1 | 87:1 | 108:1 | 105:1 | 77:1 |
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| 4.00:1 | 4.11:1 | 167:1 | 162:1 | 118:1 | 148:1 | 144:1 | 105:1 |
| 4.00:1 | 4.88:1 | 198:1 | 192:1 | 140:1 | 175:1 | 171:1 | 125:1 |
| 4.00:1 | 5.29:1 | 215:1 | 208:1 | 152:1 | 190:1 | 185:1 | 135:1 |
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| 4.70:1 | 4.11:1 | 196:1 | 190:1 | 139:1 | 174:1 | 169:1 | 123:1 |
| 4.70:1 | 4.88:1 | 233:1 | 226:1 | 165:1 | 207:1 | 200:1 | 146:1 |
| 4.70:1 | 5.29:1 | 252:1 | 245:1 | 179:1 | 224:1 | 217:1 | 159:1 |
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| 4.97:1 | 4.11:1 | 207:1 | 201:1 | 147:1 | 184:1 | 178:1 | 130:1 |
| 4.97:1 | 4.88:1 | 246:1 | 239:1 | 175:1 | 218:1 | 212:1 | 155:1 |
| 4.97:1 | 5.29:1 | 267:1 | 259:1 | 189:1 | 237:1 | 230:1 | 168:1 |
4.00:1 and 4.97:1 (5:1) are generally not recommended due to their inherent weak design.
For Automatics, we recommend anywhere from 70:1 to 100:1 as an Ideal Crawl Ratio.
A TacoSupreme™ is a TacoBox™ equipped with a set of 4.70:1 gears.
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TacoBox™ Assembled Unit
Left-Hand Front Output
This is a Completely Assembled RTI (Ready To Install) Unit
for a Left-Hand front output setup. Unit is assembled with our MC09(-R10) Dualcase
Adapter and our xx-4GT-R10 front adapter plate. Clockable options include 0-Degree, 10-Degrees
or 20-Degrees. Please specify your desired rotation during check-out.
Includes:
TacoBox™ Unit, Oversized Coupler, Seal Adapter, Sealant, Attaching Hardware, and a Shift
Handle with our Marlin Crawler Turtle Knob. 4.00:1 and 4.97:1 ratios available on request.
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| Note: All 4-cylinder applications temporarily out of stock! |
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Gear Ratio |
Applications |
Part Number |
Base Price |
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TacoBox™
2.28:1 |
4cyl, 6cyl
5spd, Auto |
MC-14570 |
$1,449 |
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TacoSupreme™
4.70:1 |
4cyl, 6cyl
5spd, Auto |
MC-14571 |
$1,899 |
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Do-It Your-Self Kits
Crawl Box to Stock Transfer Case Adapter
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MC-14120, MC09 Dual adapter Kit $649 |
Transmission to Gear Drive T/case Adapters
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MC-14121, Model# 27-4GT 2.7L 4Cyl / 5-Speed, $349 |
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MC-14122, Model# 34-4GT 3.4L V6 / 5-Speed, $349 |
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MC-14123, Model# 27-AT 2.7L 4Cyl / Automatic, $399 |
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MC-14124, Model# 34-AT 3.4L V6 / Automatic, $399 |
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MC-14050, 23 Spline 4.70 Total-Spline™ Input Gear, $159 |
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MC-14051, 23 Spline 2.28 Total-Spline™ Input Gear, $159 |
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Installation service available on all transfer case kits & components.
Typical dualcase installation cost is $900 including heavy duty drive
shaft retubing. Solid front axle converted Tacoma's will also need an
additional custom cross member to allow for drive shaft movement.
Please see Steve's Installation Pictures here: MC09 Install Pictures.
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