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GMTechBernard, Shop Foreman - GM World Class Tech
Category: Chevy
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Experience:  GM
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Chevrolet Trailblazer SS Can you remove the front drive shaft

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Can you remove the front drive shaft from a 2008 Trail Blazer SS, All Wheel Drive vehicle and drive as a two wheel drive vehicle?
Hello! No you cannot. On vehicles with Selectable 4WD, you can get away with that, because you can command the Transfer Case to only put power to the rear (2WD mode), however, since you have AWD, you don't have the option to do that and therefore, the transfer case will try and split power between the front and rear axles. Taking the front driveshaft out will cause the power split to be biased to the front and the vehicle won't move.

Also, in doing this, you will also loose your park function. When it park, due to the nature of the planetary system in an AWD transfer case, the vehicle doesn't move because the back wheels try to rotate in the opposite direction as the front and the opposition of each other keeps the vehicle from moving. If you take the front drive shaft out, the rear wheels will loose their opposition and you won't have "Park" anymore!
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Customer: replied 6 years ago.
Can I cahange the gear ratio to somewhere around 3:35, from the current 4:10?
If you change the gear ratio, make sure you do BOTH front and rear axles. also, you will need some computer programming done, to make the speedometer and such work correctly. Some "tuners" like Hypertech and Superchips will let you change the gear ratio (check with them first) or you can send your PCM out to and they can make the changes for you.
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