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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Kimper on June 27, 2015, 10:45:35 pm

Title: 1976 Chevy will not move and stuck in 4 low
Post by: Kimper on June 27, 2015, 10:45:35 pm

I have 76 Chevy with a np203 transfer case with the 2wd mod done to it. I was driving it today and decided to loc the hubs and drive it for a while to lube that bearing that needs lubing. When I got about 3 blocks from my house I pulled the 4wd shifter back and locked in the 4wd and everything was smooth. When I got to the house I figured I would check out 4 low and 4 low loc so I push the lever all the way fwd and now it seems like it's in neutral and doesn't move. I can put it in drive and and hit the gas and it just revs up. I pull on the 4wd lever and it seems stuck and doesn't move. Anyone got any ideas..

Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: enaberif on June 27, 2015, 11:37:25 pm

time to adjust the linkage underneath.

Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: Kimper on June 28, 2015, 06:48:14 am

Should I do it in according to this chucks np203 linkage adjustment??

Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: Kimper on June 29, 2015, 02:56:27 pm

I got it out of 4wd, the linkage was screwed up like you guys said. My problem now is one of the rods has worn threads and is not salvageable. Does anyone know where I can get one?

Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: enaberif on June 29, 2015, 06:32:46 pm

Quote from: Kimper on June 29, 2015, 02:56:27 pm

I got it out of 4wd, the linkage was screwed up like you guys said. My problem now is one of the rods has worn threads and is not salvageable. Does anyone know where I can get one?

Just find some replacement ready rod

Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: Kimper on June 30, 2015, 08:51:15 am

i just want to buy the replacement rod but I can't seem to find one. Is it a OEM only part or Can i go to Napa and buy one, or is there a junk yard Rubin my future..

Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: hardin.chris123 on July 01, 2015, 10:50:11 pm

My 78 k20 is like that too my linkage is messed up and it got stuck in 4w low finally got it out havnt really bothered to fix it drive shaft is out off it but I don't really need 4wd at the moment

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Title: Re: 1976 Chevy will not move and stuck in 4 low
Post by: roundhouse on July 06, 2015, 08:30:43 pm

You can probably grind a little off the threads and re cut some slightly smaller threads on it


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