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  1. Off-Road
    I'm wanting to build the most capable machine I can out of my first vehicle, which is my 03 Envoy, but it only has the 2WD Drivetrain. I was wondering If there were rear diff. locks that could help increase the performance of my vehicle while it is off-road. I don't have any intentions of rock...
  2. 4x4 Drivetrain
    For an 05 Chevy Trailblazer LS 2WD 4.2L engine with a rear axle ratio of 3.42
  3. The 02-09 "How-To" and DIY Section
    I drive a 2005 Chevy Trailblazer LS 2WD with an axle ratio of 3.42 and wanting to install a differential locker for my rear axle. Ideally a manual selectable push-button locker by either Eaton or a good brand. Can I just buy a locker that fits my vehicle and just pay a mechanic to install it for...
  4. 4x4 Drivetrain
    Hey everyone, I'm hearing clanking noises on the front end, my front differential is leaking fluid from my driver's side axle, and my drive shaft turns freely in park but not in neutral. It's a 2006 TB with a switch that can switch from 2WD to auto to 4WDup and 4WD down. I bought the TB in...
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