Brenton Posted January 3, 2011 Share Posted January 3, 2011 My four wheel drive was working fine. I like to run it through 4hi and 4lo out on our property occasionally just to keep it all loose and limber. Now, its just not working. It wasn't put through anything strenuous since the last time it worked....no crazy trail or mudfest or anything. The transfer case does shift (noticeable gear reduction), the front drive shaft drives, but I'm not getting anything to the front tires. Has anybody had similar issues? All thoughts welcomed...Thanks :waving: Link to comment Share on other sites More sharing options...
Geonovast Posted January 3, 2011 Share Posted January 3, 2011 Your CAD has failed. It's the only possibility if you know the T-case is engaging and you know the diff hasn't ground itself to dust. Pop the vacuum motor off and take a look inside. If just the motor has crapped out on you, lock it over permanently. viewtopic.php?f=9&t=18415 Link to comment Share on other sites More sharing options...
Dadinator Posted January 3, 2011 Share Posted January 3, 2011 Most likely what is wrong with mine as well. What is the point of the CAD? Does it improve MPG a bit? Does it keep the axle from binding on the road in turns or anything? Link to comment Share on other sites More sharing options...
Pete M Posted January 3, 2011 Share Posted January 3, 2011 It was done as a way of getting better MPGs (which is doesn't) and reducing wear and tear on the front drivetrain (which it doesn't). Jeep dumped it altogether in the early 90s. So if you lock the CAD permanently, it simply makes it like all later model Jeeps that came with a one-piece axle shaft in there. :thumbsup: Link to comment Share on other sites More sharing options...
COMJNUT Posted January 3, 2011 Share Posted January 3, 2011 I put a posi-lok cable in when my vacuum actuator went out, so I could have the choice of 2low or 4low. Link to comment Share on other sites More sharing options...
Brenton Posted January 4, 2011 Author Share Posted January 4, 2011 Your CAD has failed. It's the only possibility if you know the T-case is engaging and you know the diff hasn't ground itself to dust. Pop the vacuum motor off and take a look inside. If just the motor has crapped out on you, lock it over permanently. viewtopic.php?f=9&t=18415 Hey, thanks a lot. :bowdown: I'll give that a shot. Awesome step by step photos by the way. :cheers: Link to comment Share on other sites More sharing options...
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