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Getting it
Up:
The next part of the equation was to get the "Rock Taxi"
up into the air to improve the breakover angle. This is a necessity
after adding 20" in the middle. A 1980 K-30 Dana 60 front axle
with 6.17:1 gears and a Lock Rite, with used Wrangler 4" lift
springs for the spring over configuration was bolted in, located
forward 3" from the stock location.
A
Dodge ¾ ton van rear Dana 60 was swapped in, also with 6.17:1
gears and welded spider gears, replacing the AMC 20 rear axle. 38.5"
Super Swamper TSL's were also installed on Hummer beadlock/run flat
rims in place of the 33" Swamper SSR's that were previously
on the "Taxi," and the suspension and drivetrain was complete.
During the assembly
of the drivetrain, it became obvious that the stock AMC brake booster
and master cylinder were not able to move enough fluid to actuate
the BIG Dana 60 brakes. A quick call to Harold Off of Off Again
Automotive got a custom booster and master cylinder shipped out
for installation. The "Rock Taxi" now stops better than
any other vehicle I have driven.
Testing:
Incredible!
That's the only way to describe the difference between a CJ-5 and
the new CJ-5 ½. The "Rock Taxi" rides better, climbs
better, steers better on the highway (although the turning radius
is much larger) and is much more stable off-road than before. The
added length gives much more room for passengers and supplies and
allows a rear driveline that will hold up much better due to less
severe angles caused by a lift and short wheelbase. The added width
kept the stability that I had before with my mild lift and smaller
tires. Of all the modifications made to the Jeep, this rates as
the most effective in my book.
The entire project
took a full four months for me to complete, but could be completed
much more quickly, as I only worked on the project at night. The
cost for project is broken out below.
The inaugural
run for the Rock Taxi will be at the Ft Worth Dallas - Four Wheel
Drive Club's Memorial Day 2001 Event in Clayton, Oklahoma. I will
be leading trails and doing some hard core testing of the modifications
at that time. Action shots will be taken at the event.
Credits:
Mike Green - Excellent advice and loaning of quality welding
machine
Phil Davis - Generous and selfless assistance throughout the project
David Matus - The best neighbor in the world, loaned his air tools,
painting equipment, bodywork expertise and driveway for over two
month! My wife appreciates him (and his driveway) more than you
can imagine!
Project Cost:
· Rubicon
Express - Spring Pads and Shock Mounts $50
· Local Steel Yard - 18 GA sheet metal, various .25"
plate $75
· Local Paint Supplier - Bondo, Primer and Paint $50
· Time @ estimated rate - 100 hours @ $45.00/hr $4500
· Local Driveshaft Shop - Lengthen front and rear driveshafts
$150
· Extra used fold and tumble rear seat and rear belts $60
· DOM tubing for rollcage $150
· Dana 60 Axles / Gears / Lockers / Install Kits $1250
· Used 16x38.5x16.5" Swampers and Wheels $772
· Sam's Offroad High Clearance Steering Arms $300
· Miscellaneous Costs $65
Total Estimated
Cost $7,422
Cost not
Including Estimated Labor (I did all the work except driveshafts)
$2922
Cost for
Lengthening Only (without Estimated Labor ) $475
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