I HAVE A 78 K5 BLAZER. SO WHEN I BOUGHT IT THE 4WD WAS TOUCHY THEN A BOLT CAME OFF THE BARS OF MY LINKAGE SO I REPLACED IT. SINCE ITS BEEN SLIPPING INTO 4WD, NOW I CANT EVEN GET IT BACK IN 2WD. JUST PUT SOME GEAR OIL IN THE TRANSFER CASE. WONDERING IF MAYBE THE BOLTS ARE NOT SITTING IN THE RIGHT POSITION

 

Because you state that you have trouble getting it back into 2wd, I will assume that you have the NP205 transfer case.

Here is how you adjust the shifter on this transfer case:



[ol][*]Put transfer case lever in 4HI detent.[*]Push lower shifter lever forward to 4HI stop.[*]Install rod swivel in shift lever hole.[*]Hang .200 thick gauge cover rod behind swivel.[*]Run rear rod nut against gauge with shifter against 4HI stop.[*]Remove gauge and push swivel rearward against nut.[*]Run front rod nut against swivel and tighten.[/ol]