Technic
Jeep
www.gmcworkshop.com
ประจำเดือนมิถุนายน 2545
Warn
Hub Fuses
Hubs are the drivetrain fusible link of the new century! They're
easy to swap, relatively inexpensive to buy, small, and light-weight,
and you can stack a dozen of them in an ammo can in the back of
your rig. Warn has made it even easier to keep breakage outside
the wheel bearings with its new Hub Fuses. However, the hublocks
are only for use with 297-X U-joints
and shouldn't be used if you're running a Detroit Locker because
the locker can break when the hub lets go.
A
typical Warn Premium hub fails around 80,000 in-lbs. A 297-X
typically fails at about 55,000 in-lbs with the wheels pointed
straight ahead. The Warn Hub Fuses are designed to strip at
46,000 in-lbs. That means the Hub Fuses will fail first, as
long as the wheels are straight.
The secret lies in the clutch ring of the hub. The teeth inside
the clutch ring of the fusible hubs are significantly thinner
than the regular premium hub. You can get the Hub Fuses either
complete with Warn premium inners and dial, or you can simply
buy the replacement clutch rings and retrofit them in your Warn
hubs, as long as you've got the current 3-inch internal mount
models. |
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The
Hub Fuse clutch rings employ inner teeth that are much thinner
than those of standard hubs. It's possible to retrofit the fusible
clutch rings into older Warn hubs as long as they're the 3-inch
internal mount type. |
| You
can see the different in clutch ring tooth engagement between
the Hub Fuse (left) and the standard hub (right). When the Hub
Fuse fails, you simply need to replace the fuse clutch ring,
not the entire hub. |
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We
ordered a set of complete Hub Fused since oru cruddy old ones
couldn't be retrofitted. Remove the dial, stub shaft snap ring,
and inner ring clip, then remove the old hub body. |
| Lightly
grease the new hub body and slide it in. Install the inner ring
clip and the axle-shaft snap ring. |
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Install
the dial and snug down the Allen bolts. Check to make sure the
dial turns freely. You will want to buy a spare set of fusible
clutch rings before you hit the trail. |
| For
now here's the closest to Hub Fuses Hublocks you can get with
a Dana 60. The owner of this rig runs el-cheapo hubs that break
long before the stub shaft. The only bummer is finding more
of the antiquated aluminum pieces. |
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Although
we'd never do it, some owners of external hub-equipped vehicles
replace their graded bolts or studs with Home Depot non-graded
bolts. The non-graded bolts usually shear before the U-joint
or axleshaft breaks. The biggest drawback to this method is
that you've got to break out the stud extractor, drill, and
tap before you can motor on. |
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SOURCES
:
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JB
Conversions Lnc.
Dept. 4WOR
132 Bearuegard Ave. Sulphur, LA 70663
318/625-2379 |
Tom Wood's Custom
Drive Shafts
Dept. 4WOR
306 E. 31st St.
Ogden, UT 84401
877/497-4238
www.4xshaft.com |
Warn Lnd.
Dept. 4WOR
12900 SE Capps Rd.
Clackamas, OR 97015
800/543-9276
www.warn.com
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ข้อมูล : จาก 4WHEEL & OFF-ROAD Magazine, March 2001, Page
57
www.4wheeloffroad.com
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