4wd

  1. T

    Won't start with out gas compression

    88 k2500 Scottsdale with a 350 small in it Headers (long tube), y-pipe, no O2 connected, upgraded thermostat (185°), new water pump, starter, spark plugs, and serpentine belt. Went to go start my truck today and it wouldn't turn over, I thought it was because of the cold weather but I let it...
  2. C

    Transfer case switch - 2 pin to 3 pin conversion on 94 K3500

    Fixing Chevy 3500 dually diesel for a buddy. 4x4 not engaging, no lights on the floor shifter. He said he replaced the actuator in the axle. I figured out taht the transfer case switch must be bad. Pulled the connector to verify the type (auto parts stores offer 2 kinds - 2pin and 3pin) and...
  3. M

    4WD not working, actuators engaging

    Already discovered issue. Front driveshaft stripped or broken. What do I need to specify to order and what are things to remember when replacing? I've never done this. 4WD wasn't working, but all the button lights worked and could hear both actuators engaging and disengaging. 2WD worked fine...
  4. W

    4WD Not Working

    I have a 92 K2500 with an NP241C transfer case and floor shifting 4wd. Before I removed my transfer case and transmission, my 4wd didn't seem to work. If I understand it correctly, the floor shifter physically engages the transfer case and results in the front and rear driveshaft turning. There...
  5. S

    4x4 frame swap on a 1996 2x4 C1500

    Hi, this is my first post. I own a 1996 C1500 Reg. Cab Long Bed with the 4.3 Vortec and a 4L60E. Im wanting to turn it into a little more capable rig, I kinda want 4wd on it to go offroading with my friends from time to time, but nothing aggressive. Just to sit a little higher with a little...
  6. D

    4wd front axle wont engage

    Hi fellas, im having issues with my 4wd I changed the thermal actuator to a dorman electric actuator with the spacer and harness. With 4wheels in the air, when i engage the 4hi with my floor shifter, the front driveshaft spins, the motor pushes in the front axle, but the front wheels wont turn...
  7. SR104

    4WD fuse blown

    Hey fellow GMT owners, I’ve got a question… My floor shift T-case light recently stopped coming on when shifting into 4H and also would always grind when trying to put it into N or 4L, but it’s done that the entire time I’ve owned the truck so I’m not really concerned about that (though if I...
    • SR104
    • Thread
    • 4wd 4wd light 4x4 blown fuse transfer case transfercase
    • Replies: 23
    • Forum: Electronics
  8. W

    How to test 4wd

    How can I best test my 4wd? I have a 92 K2500 and I recently used 4lo as I was stuck on icy grass in a field. I wasn’t easily able to get unstuck which I felt was odd. I spun my tires a bit in the rear for sure but I completely forgot to check to see if it was even turning the tires in the...
  9. M

    Help with replacement np241

    I could use some advice on the wiring involved in the np241. I have a 1998 k1500 and I had my TC go out so I bought a replacement np241 off marketplace. When I removed my case I found that the input shafts were different so I took both apart and swapped them. After putting it back together and...
  10. K

    4 wheel drive problem

    Hi, I don’t know if this is the right place but I was wondering if I could get some help. I have a 2000 Chevy k2500, it is an old body style. I am having problems with the selectable 4wd. I have replaced the encoder motor, actuator on the front axle, and the switch. When I turn the key on the...
  11. N

    1992 Chevrolet K1500 5 speed Manual, front drive shaft replacement help (Very new topic for me) What should I know?

    Hello all. I am purchasing a 92 K1500 5 speed Manual with a 350 small block, off of someone who is moving away. The pevious owner removed the front drive shaft and the guy I'm getting it from said he believes the U-joint probably went bad. He mentioned the shifter does seem to get stiff/stuck...
  12. H

    Sub 2" Lift- stock 97 k1500 z71

    This is my first post- hope I'm not posting in the wrong place or beating a dead horse. After reading other threads, I gather that once you start cranking the TBs and adding blocks, things can get out of whack pretty fast. But I also don't want to do a real 4" lift or a BL or anything. I...
  13. R

    Fuel Pump and Sending Unit...HELP!!!

    Hello everyone, So I believe I need to replace my fuel pump. It takes a bit to start up (no problems cranking), and its a brand new engine. Its less than 10k miles, I ended up doing a new engine replacement. Anyways, for my expertise and knowledge; I will attempt to do this by myself. I might be...
  14. sethturbo

    Front diff removal

    Hi all, so i have a 93 k2500 6 lug with a blown front diff, I would like to just remove my front diff and front driveshaft completely to rebuild my diff slowly on my own time, i already have the cv’s out. My only concern is structural integrity of the frame, would i be okay to drive without my...
    • sethturbo
    • Thread
    • 4wd drivetrain front diff k2500 5.7v8 transfer case
    • Replies: 5
    • Forum: Axles + Brakes
  15. Jason_Staggs

    Np241c jumped to neutral now stuck in 4lo

    Hey fellas, starting out I have a 95 k1500 350 NV4500 NP241C 180k-ish miles. I was driving back from my buddies house had cruise set about 65 climbing a slight grade when all of a sudden I heard a loud clunk, my truck lurched, and my engine tached out. I pulled over and tried 1-5 and R and it...
  16. 96CK

    4WD HI/LO light blinking

    Alright, I've dug and dug but can't seem to find something similar to this one. I've even tried using good ol Google. I have a 1996 Z71 with a 5.7 Vortec and pushbutton 4wd. When I push the button for 4HI it stays blinking, 4LO I get a solid light and you can hear the clunk plus when you...
    • 96CK
    • Thread
    • 4hi 4high 4wd 4wd light blinking
    • Replies: 5
    • Forum: Transfer Cases
  17. Bluey Chevy

    18" rims and 255/70R18 tires on 98 4.3K1500

    I put Bridgestone Deullers in above size on stock 2008 Silverado rims Truck came with worn 265/65 R18 I'm liking the look and performance. Very truck looking, just to edge of wheelwell, not bulgy. Nimble compared to prior. I used gps to check speed. Speedo was lower than actual. On the...
  18. S

    96 Chevy K1500 transmission stuck in 3rd

    Im having trouble diagnosing the codes my truck is throwing which are: p1886 Shift timing solenoid, p1860 Tcc pwm solenoid circuit - electrical, p1864 4-5 shift solenoid valve control circuit low voltage, as well as p0758 and p0753. The truck ran fine one day and quit the next. When I got in the...
  19. Amsterdamned96

    Does a frame-off restoration (removal of the cab, specifically) require the floor-mounted 4wd selector to be removed?

    Greetings all, I hope this the right section for this thread. I’m removing the ext cab on my ‘93 k3500. I was busy loosening the 4wd selector to ensure that there is nothing in the form of a linkage holding the transfer case to the cab. Can anyone clarify this, as i’m having trouble...
  20. C

    4Wd Fuse Blowing, Tried Every Fix I Know

    Hello, on my 1993 K1500 the 4wd fuse will not stop blowing. I've read every post I could find on here and other websites, and nothing will do the trick. I was hoping that someone would have a fix before I spend another $150 on a Posi-Lok after spending $150 on a new electric actuator and t-case...
  21. CanadianNorth

    94 K1500 blowing 4wd fuse on startup.

    Hi Folks, I'm guessing this is a short somewhere - but I wanted to ask for help as it sounds different than most things I've read about 4wd and fuses. The truck is a well maintained 1994 K1500 4.3L with automatic trans. The 4wd blew a fuse a few weeks ago, I replaced it, and all was good. A...
  22. Amsterdamned96

    4/6" Drop on a K3500?

    Greetings to all, I'm the proud owner of a barn find/ fire damaged k3500. It was handed to me in a state of disarray, I've finally amounted enough funds to buy all the parts I'll be needing after I completely disassembled everything I found questionable and plan to do a 'Bolt' restoration of...
  23. I

    Driveshaft length on a single cab long bed 4wd 700r4?

    Hey all! I'm new here, but have always loved my OBS's. (Surprised this name wasn't taken) I just bought a beautiful 88 GMC, however it needs both driveshafts, I've already got the front, but in having a time finding a rear. Does anyone know how long the driveshaft for this truck would be? I...
    • ILoveTBI
    • Thread
    • 4wd drive shaft gmc long bed single cab tbi
    • Replies: 5
    • Forum: Transmissions
  24. spacklesworth

    4WD Won’t Shift Back to 2HI

    Howdy, I have the 4-button (2HI, 4Auto, 4HI, 4LO) system in my ‘98 K2500 Suburban and am having issues shifting from anything 4 back to 2HI. I have no problems shifting from 2HI to anything 4, but after driving in 4 for about 50-100yds the “Service 4WD” light appears in the cluster, although...
  25. CBenZ71

    Front Axle issue? Dumb question.

    Okay, I bought a 1999 k2500 and have been trying to get it running right. I jacked the front end up today and hand turned the tires, the entire axle shaft spun on both tires. It is in 2WD. Is this normal? I feel like maybe the bearings are bad? When I put the truck in 4WD, it violently shakes...

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