I have '96 GMC 1/2 ton pickup and the 4-wheel drive isn't working like it used to. I used to be able to be driving down the road and pull the lever and lock it in while driving. Now I pretty much have to stop and sometimes put it in nuetral to get it to engage. Now once it is engaged it sometimes sounds like its not all the way in. If I stop and then get back into the gas it clunks. I can also be driving down the road and have to slow down for something and then when I speed back up it clunks again like it's not all the way engaged. Is my linkage maybe sloppy?? Is there a way to adjust this?? If so how??
yeah, its either the chain in the case or the linkage. more than likely its the linkage. i've looked through my chilton's here, but it doesn't say how to adjust the tcase linkage. if i skim over something online, i'll get back to you.