79 k10 Newbie issues. Stressed out Mom, please help!

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

AyWoSch Motors

The Parts Guy
Joined
Nov 6, 2020
Posts
4,709
Reaction score
13,719
Location
New Mexico
First Name
Ayden
Truck Year
1986
Truck Model
K1500 Sierra
Engine Size
350ci V8
Thanks for all the welcomes!! Plan on pulling the drive shafts first thing tomorrow, I'll post how it goes after... Hopefully we see movement!! If it turns out to be the t-case, any suggestions where we could get a 205 for a decent price or what's some options on the twins shifter conversion? I keep reading, that pretty much everyone switches. According to the vins and and numbers on the Engine,trans and other things I've found on it, its all original. Pretty cool I'd like to keep it that way if we can.. Thanks again!!
Junkyards, that's about the only place to get one.
 

Big Chip

Full Access Member
Joined
Oct 19, 2017
Posts
4,656
Reaction score
6,736
Location
Michigan
First Name
Kevin
Truck Year
1979
Truck Model
C35
Engine Size
454
Thanks for all the welcomes!! Plan on pulling the drive shafts first thing tomorrow, I'll post how it goes after... Hopefully we see movement!! If it turns out to be the t-case, any suggestions where we could get a 205 for a decent price or what's some options on the twins shifter conversion? I keep reading, that pretty much everyone switches. According to the vins and and numbers on the Engine,trans and other things I've found on it, its all original. Pretty cool I'd like to keep it that way if we can.. Thanks again!!
Try www.car-part.com
 

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,987
Reaction score
19,149
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
I had 496,000 miles on my NP203 before I had it rebuilt. It would just jam in 4Lo and I had to get underneath to fix it. No, it wasn't the shifter. A lot of folks swear by the NP205 and I ain't knocking it.
 
Last edited:

Soundmound

Supporting Member
Supporting Member
Joined
Feb 15, 2022
Posts
1,828
Reaction score
5,521
Location
North Central Washington
First Name
Dave
Truck Year
1984
Truck Model
Scottsdale
Engine Size
305
Welcome and congrats on the family project. I hope you get it "squared" away! :gr_grin: Will be interested to see another kid beat their rig back into service, warms the heart to see them turning their backs on modern wheels. Not that most of us can afford them anymore, lol.
 

1973c10

Full Access Member
Joined
Sep 25, 2015
Posts
6,376
Reaction score
24,020
Location
Oregon
First Name
Don
Truck Year
1973
Truck Model
C10
Engine Size
454
Welcome aboard :boti:
 

70SBUDGET

Full Access Member
Joined
Jan 2, 2022
Posts
55
Reaction score
57
Location
SAN DIEGO
First Name
RYAN
Truck Year
1979
Truck Model
K20 CUSTOM
Engine Size
350
E brake on?

If it is not moving, the drive shafts won’t spin. Pull the front and rear at the same time. Knowing the truck won’t move with no drive shafts, toss it in gear and see if the output shafts spin. This will isolate trans/transfer case issues or differential/axel/brake etc.

One step at a time. You got this.
 

Babs

Full Access Member
Joined
May 10, 2020
Posts
1,962
Reaction score
9,718
Location
Ottawa Valley
First Name
Paul
Truck Year
1976
Truck Model
Chevrolet CUCV
Engine Size
350
You must be registered for see images attach
 

WP29P4A

Full Access Member
Joined
Jul 18, 2021
Posts
890
Reaction score
1,516
Location
Nevada
First Name
Mike
Truck Year
1987
Truck Model
Sierra Classic V1500
Engine Size
350 TBI
We have a local place called Drivetrain . com in Nevada, you should have something like this on the East coast also that sells rebuilt t cases. You have other options besides junk yards.
 

Grit dog

Full Access Member
Joined
May 18, 2020
Posts
7,243
Reaction score
12,837
Location
Auburn, Washington
First Name
Todd
Truck Year
1986, 1977
Truck Model
K20, C10
Engine Size
454, 350
OP appears to have flown the coop. Posts seemed weird in a way, like knew all the terminology but ….
Anyway if it’s a ft 4wd and rear ds was out, no one including the OP mentioned driving it with the front axle only. That would tell a lot
 

DoubleDingo

Full Access Member
Joined
Jul 3, 2012
Posts
11,485
Reaction score
17,786
Location
Right where I am
First Name
Bagoomba
Truck Year
1981
Truck Model
81-C20 Silverado Camper Special-TH400-4.10s
Engine Size
Carb'ed Vortec 350
How did this turn out?
 

Depchevy4lyfe

Junior Member
Joined
Nov 19, 2022
Posts
14
Reaction score
13
Location
Nc
First Name
Eddie
Truck Year
1982
Truck Model
Silverado
Engine Size
350
Honestly it sounds like ur really low on trans fluid, run it, bring it up to operating temp and check the fluid level
 

Forum statistics

Threads
44,614
Posts
962,590
Members
37,155
Latest member
Troyport
Top