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4x4 without 4wd

bobalob

bobalob

1/2 ton status
Joined
Jul 20, 2005
Posts
157
Reaction score
0
Location
Everson, Washington
Dad went to put his, new to him, 95 1/2 ton Chevy Silverado into 4wheel and got no front wheel action in low or hi. Apparently he didn't try the 4wd when he bought it a few months ago and this was the first time he needed it. He has no manual or knowledge (either do I ) about the truck so if you could clue me in on what the drive train components are and some trouble shooting or common causes that would be a big help.
 
check to see if the front axle acuator is working this is a commen part to fail. You will see the actuator when you look at the front diff it is sticking out of the center section
 
alright thanks but as usual in Washington it is raining :( so I'll go look after I find tarp to put down over mud. How will I know if acuator has failed?
 
you should be able to here the actuator engage if you are near it when the truck is shifted into 4x4
 
biggest problem with these is the solinoid goes out, POS in my opinion :D
 
More than likely the thermal actuator has failed. It's pretty common on the olde thermal style. If/when you replace it, make sure you get a new electronic version.
 
or if you want for sure option 4x4 posi lock kit. cable kit for you to pull in the cab and lock in and out. :D
 
Id go with the cable kit. its cheaper than an oem actuator and its gauranteed to work everytime right away. and with the posi lock you have the option of 2wd low.
 
79k20350 said:
Id go with the cable kit. its cheaper than an oem actuator and its gauranteed to work everytime right away. and with the posi lock you have the option of 2wd low.
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Last I checked, the elec act. from the dealer was about 69-80 bucks. They want 150 + for the posi-lock.
 
Afireinside said:
Anyone have part numbers?Also is there a difference between 1/2 ton and 1-ton.
Thanks
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Not trying to hi jack but I called my local dealer and they wanted more like $200,On mine the fuse is also blown because the actual wires on the diff. are melted.So anyone have part numbers?Pref.the new version(electric vs thermal?)
Thanks everyone
 
go with the posi lock. In my opinion, it is the most reliable method out there, with the least amount of malfunctions.
 
I thought the electric and thermal were the same thing? Electric coil heats up fluid to move actuator? I dunno, pay no attention to me.
 
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