Question about Hummer H2
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Posted on Jan 02, 2017
SOURCE: hummer h2 transfer case
Only way for this to happen on an H2 (AWD) is for something to break rearward of the lockup hub. Take a look at the splines between the intermediate shaft and centerdifferential or even the teeth on the forward sun gear and/or stepped pinion on the center diff.
As long as you have the t-case torn down for repair be sure to upgrade to the new aluminum mode fork (production upgrade to old plastic forks thru end of 2007 or so). You should also upgrade the rear half of the housing to the 2008 version which has a pressed-in rear prop bushing (better bushing and is also replaceable.
Posted on Sep 30, 2008
This is pretty straight forward once you have a few basic tools. You will need a suction pump and a bowl/bucket type container to put the old fluids into.
Both the front and rear diffs should have a rubber inspection plug you can remove to pump the old stuff out, and the new gear oil in.
Synthetic fluids last longer and work better.
The transfer case should have two threaded allen plugs (or similar) that are removed to drain and then refill the T case. Remove bottom then top to drain. Reinstall bottom then refill.Then reinstall top.
Posted on Aug 10, 2010
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