need help identifying my transfer case PLZE

[Chandlerk5]

ok so i just bought a 1986 GMC high serria k5 blazer with 37x13 boggers with no rust. was a father son project but the guys son was more interested in cocaine. he had all the body work done and new M/T rims and used boggers new lift and new warn lockout hubs also. interior in ok shape paid 1600 for it clean title. i know its a th350 trans they scarpped the 700r4 but he said he didnt know wat tansfer case it had in. shift pattern is like this (Front 4L, Neut. , 4 H Back agaist seat ) thats it for 2 high you have to unlock the hubs iam clueless on what tansfer case it has anyone wannna help? plze and thx

[Gyawo]

Probably a NP 208 if it came with a 700r4. I don't think our K5's came with 205s in that year. I have an '86 with a 700r4 and my t-case is the NP 208.

[Chandlerk5]

the guy told me he scarpped the 700r4 and and transfer case and he got the trans and case out of a older model chevy 4x4 but he forgot what model. the stock shift pattern on the console in the blazer is NOTHING like the shift pattern for the transfercase

[Gyawo]

What does it look like then? Usually they have a tag saying what it is on the back too, unless it has been taken off.

[Chandlerk5]

nope chevccked for tags before i bought it. nothing there

[Chandlerk5]

i checked the speedometer cable is on driver side like always. its got a side panel that 4 bolts hold on going to take it off and look inside see if its chain driven or gear driven

[russgt]

If it is cast iron, its a 203 (chain drive) or a 205 (Gear to Gear). This is a picture of a 205. Notice the small round cover with 3 bolts in the middle, its an idler shaft cover, the 203 doesnt have it.

[MadManAndrew]

Originally Posted by Chandlerk5

i checked the speedometer cable is on driver side like always.

Mine's on the passenger side...Is it not supposed to be there?
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[Chandlerk5]

Originally Posted by MadManAndrew

Mine's on the passenger side...Is it not supposed to be there?
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idk? just meant like on my race truck and other trucks ive worked on mine have been on drivers side

[MadManAndrew]

Originally Posted by Chandlerk5

idk? just meant like on my race truck and other trucks ive worked on mine have been on drivers side

Oh, okay, good, lol. I was beginning to go crawl under there and figure out how the hell the PO managed that.
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[bikes&bowties]

Np205!
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[bikes&bowties]

Wait your not the op posting the pic lol....
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[Chandlerk5]

iam going to take a look and if i cant figure it out iamma post some pics

[Chandlerk5]

i think its a 203 where the idle shaft cover is there a drain plug. so iam going with a 203 iam i right?

[russgt]

Most likely. The turbo 350 is more common to have a 203 behind it because it was offered that way for a long time. It was also available with the 205 but is a little harder to find.




thanks to chucks chevy trucks page

[Chandlerk5]

thx for your help iamma try and look around and get me a 205

[russgt]

Watch for 1980 models, every 4x4 had the 205

[Chandlerk5]

any helpful tips after i get my 205? anything i need to know installing it?

[russgt]

try to get the turbo 350 and adapter with it that came with the 205, I am not sure if the output/inputs are the same length or the same spline between the 203/205. Your crossmember is the same but be sure to check out the rear out put on the TC as some were bolt on yokes and some were slip yoke.

[Chandlerk5]

ya i found one that was in a 77k10 np 205 with 350 turbo $400