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'99 - '06 GM Truck Modifications
Differential & Driveline
Front diff not engaging or tcase?
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<blockquote data-quote="vipergtrdj" data-source="post: 16969" data-attributes="member: 6204"><p>Question - I have a 04 Silverado 2500hd 6.6 with push button 4wd. I am having a problem with it locking into 4wd.</p><p></p><p>With it in 4hi and truck moving the front driveshaft does spin. So, I pulled the front diff actuator and verified it moves when 4hi/4lo is selected. I put it in 4hi with the actuator off front diff and cannot turn the front driveshaft by hand. When in 2wd I can spin the driveshaft, so that tells me the transfer case is engaging.</p><p></p><p>With that being said, am I right in thinking the front diff is junk? Any other tests I can do to double check?</p></blockquote><p></p>
[QUOTE="vipergtrdj, post: 16969, member: 6204"] Question - I have a 04 Silverado 2500hd 6.6 with push button 4wd. I am having a problem with it locking into 4wd. With it in 4hi and truck moving the front driveshaft does spin. So, I pulled the front diff actuator and verified it moves when 4hi/4lo is selected. I put it in 4hi with the actuator off front diff and cannot turn the front driveshaft by hand. When in 2wd I can spin the driveshaft, so that tells me the transfer case is engaging. With that being said, am I right in thinking the front diff is junk? Any other tests I can do to double check? [/QUOTE]
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'99 - '06 GM Truck Modifications
Differential & Driveline
Front diff not engaging or tcase?
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