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Originally Posted by Drainbamaged
I busted my front Differential on sunday and I thought the same thing. Take the front Drive shaft off so i can make it home or to the shop. Well the bolts are only on the front differential side. The rear of the drive shaft is a slip yoke which if you take out will drain all the fluid out of the transfer case. I don't know about any other years but I would think that hummer wouldn't change the design and leave it the same for all years.
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Did you actually try and pull the front shaft or just look and think it was a slipjoint similar to the rear shaft? On my '03 the front shaft has a male spline on the T-case end of the prop.shaft that engages an internally splined hollow output shaft of the of the T-case. I CAN pull the front shaft if necessary without loosing oil. I carry a "Limp Home Kit" just so I can pull the front prop.shaft and both halfshafts in case of a blown frontend. BE SURE to retain the front wheelhub bearings some way if you do pull the front halfshafts as the wheel bearings/seal assy. can seperate if operated without the halfshafts in place!
I still wouldn't recommend running without the front prop.shaft very long as the rear axle would be left to carry 100% of the load as opposed to its designed 60/40 torque split with the front axle. The H2 is a heavy truck and has a relatively light rear axle that would certainly wear much faster if left to handle 100% of the torque load. What gains in fuel economy (if any) would be more than offset by the costs of increased axle maintenance.