Off-Road drivetrain articles and tech showing you how to repair and upgrade your transmission, transfer case, drivelines, axles, gears and other key drivetrain components on your Jeep Cherokee, Wrangler, CJ, TJ, YJ, JK & ZJ. Reviews on ARB, Yukon, Eaton, Poly Performance, Terra-flex.
 | Oct 31, 2008
By:Jim Lougeay
Greasing the wheel bearings on a semi-floating rear Dana 44 can be an almost impossible task. Even after taking apart half the axle, it is still hard to get the bearings the proper amount of grease. This modification makes greasing the bearings a breeze. Check it out.
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 | Sep 23, 2008
By:Harry Wagner
The original Monster Box was big, beefy and the first-three speed transfer case available. Now STak 4x4 introduces the Mini Monster. With smaller dimensions it easily fits in the frame rail of almost any Jeep, 4x4 or truck adding much needed gear reduction and strength. We take a peek inside the monster to see what makes it so stout.
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 | Eliminating The Weak Link
Oct 15, 2007
By:Pete Bach
By now, most Jeep JK owners have taken a peek under their rigs, only to find drive shafts that are totally unusable.
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 | Dana 44 Front Hub Grease Nipple Installation
Jul 15, 2006
By:Jim Lougeay
The internal-spline Dana 44 front hub uses two tapered roller bearings, and a seal at the inboard end of the hub. At the outboard end of the hub is a drive-in cap that can allow water to enter, bringing grit along with it. Adding to the problem is the large volume of air in the hub.
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 | Use a CO2 tank to operate your ARB locking differentials!
May 1, 2006
By:Matthew E. Stocke
By a huge margin, the number one question I get asked when people see my Jeep for the first time is: ?what is that tank in the back?? The tank is, of course a compressed liquid CO2 tank. But it can be used for so much more than just filling your tires. Read on??
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 | Nov 1, 2005
By:ORC STAFF
The Dana 300 transfer case used in 1980 IH Scout IIs uses the same bolt pattern and input hole size as the Jeep Dana 20. It is a great transfer case to use as an upgrade to the Jeep Dana 20 because it has a much better low range. It is a gear drivin transfer case with a cast iron case. Low range is 2.62:1.
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 | Nov 1, 2005
By:Terry L. Howe
The SM465 is the replacement for the SM420.
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 | Nov 1, 2005
By:Terry L. Howe
The Ford version of the T-18 was used approximately from 1967 until 1984. It is a heavy duty four speed manual transmission that is available in wide and close ratio, but I've only seen the wide ratio version in Ford trucks. The transmission weighs close to 150 pounds.
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 | Nov 1, 2005
By:ORC STAFF
There are many advantages to swapping an early Bronco Dana 44 into the front of a Wrangler YJ. The Dana 44 has larger u-joints, bigger ring and pinion, larger axle shafts (30 spline), beefy internal hubs, 5 on 5.5" wheel bolt pattern, and good pinion placement.
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