truck pulls its self out of 4wd?

[the_goat_man]

i have a 87 k5 and it pulls it self out of 4wd does any one know why. i had an 86 k5 that did the same thing what is the easyest way to fix. the truck has 12 in lift on it custom drive shafts. thanks. oh np-208 case

 

[Hogback Fabrication]

Does it have a body lift?

 

[the_goat_man]

no it does not have any body lift

 

[496truck]

T-case shift fork is worn out or the shift detent spring is worn/broken.

My previous t-case would even slip into neutral just driving down the street. Shifter didn't move or anything just no power to the wheels for no good reason. I still have it, swapped in a good one, but haven't opened up the old one to find out what's up.

 

[84 k5 blazer]

My np208 does the same thing, No lift, all stock. I have to hold it in 4x4 to keep it engaged.

 

[the_goat_man]

when i pull it back in 4wd high it will click, then i go through the mud and it just pulls out of 4wd .

 

[DieselWarrior]

Does it have a body lift?

You were thinking the same thing I was thinking...

 

[4xcrazy]

 

[jekquistk5]

I used ratchet straps around the center console with my old k5 and its 241 haha

 

[RootBreaker]

You were thinking the same thing I was thinking...

that is what i thought.. we had road work up rt 295... and go fast enough... my truck would pop into neutral when i hit the bump...

oh... np203 - 3" bl

seems to be that np203 with no play.. the np205 with the sloppy linkages!!!!!

 

[4xcrazy]

If i remember right, Pauls (Pauly383) his truck used to do that too, and also Allan's too, both had 208's, Allan tore his apart and found worn shift forks i believe. He had a REAL hard time to where the passenger had to hold it in 4lo to go anywhere with it.