1983 k-20 4+4 ?

Would anyone know what transfer case is on my 1983 Chevy K-20 6.2 Diesil ? And how can I tell what transfer case I have, One other question I have is can I disingage 4+4 while going down the road, or must I stop and be in neutral ? any help would be great .. Thanks Brandon
 

plowking35

2000 Club Member
Location
SE CT
Whick tranny do you have? You should have the NP 208 t case, you can tell if it is that unit, the case will be aluminum. If for some reason you have a cast iron t case, you will have a NP 205.
The other way to tell is from your shift patten on the t case handle.
If it is the following = 208
Starting with the shifter towards the dash
2 high
4 high
N
4 low

If it is the following = 205
4 low
N
2 high
4 high
Dino
 
Thanks for the info, I must have the NP 208 the pattern is the same as you had wrote, and it is aluminum, But My other Question is, Can I disinage on the fly or must Be in Neutral and stoped ?

Thanks
 

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