np203

  1. K

    Electronic Shift NP203/NP205 Doubler

    Hello everyone. Hope your Thanksgiving goes well. This will be my first posting on this site. I'm currently working on my dream truck build...a 1991 V3500 Crew Cab Cheyenne 4x4. Found it 2 years ago on FB marketplace and couldn't walk away from it. It's in rough shape, and it will be built from...
  2. K

    What is the best th350 rebuild kit?

    I have a 74 K20 with a th350 that ate my first/reverse clutch. I was wondering what you all have done in the past as far as tips and tricks, kits used, and what not to do. As of now I will be rebuilding the transmission myself unless I can find a reasonable replacement. Any way mostly curious...
    • Kalem
    • Thread
    • automatic transmission np203 th350 transmission
    • Replies: 1
    • Forum: Tech Discussion
  3. Big red square

    Transmission paint

    Has anyone painted the th350 and np203 transfer case. Want just regular silver like a factory semi shiny look.
  4. iamtherealJayy

    NP203 to NP208 swap?

    I have a 1976 Chevrolet K10 with a 350 and I believe TH350, it has an NP203 tcase that I want to eliminate for better fuel mileage(truck is being built to be a cruiser that can drive wherever whenever) i recently traded off my 1981 Frankenstein for an 86 k10 Silverado and an 80’s k20 frame. The...
  5. rwljpl

    4l65e and NP203

    I’m looking at swapping out the TH350 3 speed in my truck for a 4L65e. Transfer case is NP203. Is it possible to make this work? What are the challenges going to be?
  6. Zayshley

    '76 K1500 NP203 to NP205 swap

    I just recently bought a NP205, that was bolted to a 400/th350 in a '80 Blazer, that I plan in putting in my truck to replace the beat NP203 which has the locking hubs conversion kit. Besides drive shafts, is there anything else I need to make it work?
  7. B

    Another np203 Mysterious Popping Noise

    86 k10 350th Np203 Recently a buddy and I tore down the front end and replaced axle u joints, all new ball joints, repacked bearings, and installed a new lockout hub on the passenger side. Trucks been driving great except I’m getting a popping noise from the passenger front when Turning on...
  8. D

    Linkage Np203

    Lost linkage somewhere for a 78 k10..anyone help me with where I can get one?
  9. AyWoSch Motors

    Burnouts with a NP203 full time 4wd?

    So I have an odd question. I have a '74 K5 Blazer with a big block 454, Muncie SM465 4 speed, a NP203 full time 4wd, full time front hubs, and a GM 14 bolt rear end. The odometer for the truck says 10k, but I've done the math, and I'm pretty sure it has about 310k (rolled over 3 times) Now my...
  10. devin bianco

    quick question, full time to locking hubs (k10 10 bolt)

    I am doing the 203 to 205 swap on my 79, soon enough the front axle is going to be rebuilt and i know i will need t install a manual locking hub kit (currently has no hub locking mechanism). when i look it up, all i see is part time 203 kits that include the hubs. In this case will i just need a...
  11. devin bianco

    Np203 to Np205 , transfer case swap

    this might have been talked about before, but it would be nice for some clear information on it. first here are some specs: Ive got a 79 k10, sb350 going to a th350 going to a np203 full time no slip yoke. we are doing a np205 swap, we have the truck down to frame with no current drivetrain...
    • devin bianco
    • Thread
    • driveshafts help linkage np203 np205 np208 swap t-case th350 transfer case
    • Replies: 24
    • Forum: Transfer Case

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