Broken slip yoke 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.

Pbtrilogy

Junior Member
Joined
Feb 20, 2017
Posts
8
Reaction score
0
Location
Biloxi, Mississippi
First Name
Josh
Truck Year
1984/ 1984
Truck Model
84 K10 Scottsdale/84 C30 Silverado
Engine Size
350/ 454
So yesterday on my way home my slip yoke and u joint on my rear drive shaft broke. Obviously it was from a combination of a lack of maintenance and age. I am now having a hard time finding a new slip yoke to replace my broken one. None of the parts stores around me could pull up a replacement. Will I need to replace the whole driveshaft to get the part?

The truck is an 84 shortbed k10 with an np208 with 32 spline slip yoke.

Any recommendations for parts or part numbers would greatly help

-Thanks
You must be registered for see images attach
 

Pbtrilogy

Junior Member
Joined
Feb 20, 2017
Posts
8
Reaction score
0
Location
Biloxi, Mississippi
First Name
Josh
Truck Year
1984/ 1984
Truck Model
84 K10 Scottsdale/84 C30 Silverado
Engine Size
350/ 454

Craig 85

Full Access Member
Joined
Jan 25, 2017
Posts
3,917
Reaction score
4,116
Location
Nashville, TN
First Name
Craig
Truck Year
1985
Truck Model
K30 SRW
Engine Size
454/TH-400/NP205
I know when I did a 3/4 ton axle swap on my '79 K10 I had to use a hybrid joint to make the 1/2 ton and 3/4 ton stuff work together. The 1/2 ton was a 1310 series and the 3/4 ton rear end was a 1350. Based on that this is probably the chart/yoke you need.

1310 Series 32 spline New Process NP 205, 208, 241, 243, 246, 261, 263 Transfer Case Slip Yoke.
  • Length to center of u-joint... Dimension #1 = 7.5 inches
  • Barrel Diameter... Dimension #2 = 1.886 inches
  • Barrel Length... Dimension #3 = 6 inches
  • U-joint cap diameter... Dimension #4 = 1 1/16 inches
  • U-joint width... Dimension #5 = 3 7/32 inches
  • Series... 1310
  • Spline count... 32
You must be registered for see images attach
 

JoeR Jr

Full Access Member
Joined
Jun 23, 2018
Posts
196
Reaction score
251
Location
Stokesdale, NC
First Name
Joe
Truck Year
1986
Truck Model
C10
Engine Size
6.0/4L80E
Did you come up with a good part number? Mine is pitted and I don't want to install it and tear up my rear seals.

If it's pitted make sure all your ground straps are good. It's been a long while since I saw one that failed from that, but arcing across the tailshaft makes them leak eventually.
Joe
 

LateOnTheBrakes

5.3-Swapped 86 CUCV
Joined
Feb 2, 2020
Posts
463
Reaction score
123
Location
Virginia
First Name
Joshua
Truck Year
1986
Truck Model
CUCV
Engine Size
5.3
It's pitted so I don't want to ruin a seal in the transfer case.
You must be registered for see images attach
You must be registered for see images attach


Sent from my Pixel 3 using Tapatalk
 

bedwards

Full Access Member
Joined
Nov 12, 2016
Posts
192
Reaction score
156
Location
Adger, Al.
First Name
Bryan
Truck Year
1985
Truck Model
c10 Silverado
Engine Size
305
I'd run the **** outta that. I doubt it causing any problems.
 

JoeR Jr

Full Access Member
Joined
Jun 23, 2018
Posts
196
Reaction score
251
Location
Stokesdale, NC
First Name
Joe
Truck Year
1986
Truck Model
C10
Engine Size
6.0/4L80E
As longs as that seal isn't riding on the pitted part, I agree with bedwards.
Joe
 

LateOnTheBrakes

5.3-Swapped 86 CUCV
Joined
Feb 2, 2020
Posts
463
Reaction score
123
Location
Virginia
First Name
Joshua
Truck Year
1986
Truck Model
CUCV
Engine Size
5.3
I assume the pitted area is probably just at the end of the seal. I slammed it back together and I'll see what happens.
 

Forum statistics

Threads
44,167
Posts
950,753
Members
36,283
Latest member
Cantrell299
Top