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Steering coupling shaft '88 G20 Van #754504
November 27th 2019 5:24 pm
November 27th 2019 5:24 pm
Joined: Jan 2012
Posts: 8
Germany
D
DrVan Offline OP
stranger
DrVan  Offline OP
stranger
D
Joined: Jan 2012
Posts: 8
Germany
Hello there,

Is anyone able to tell me the u-joint size for the steering coupling shaft on a 1988 Chevy G20 (with power steering)?

Gm part number is #26013139
https://www.gmpartsdirect.com/auto-...eering-cat/steering-column-assembly-scat

As the part is discontinued I would like to rebuild the coupling shaft but I cannot find which u-joint size is used on either end.
The Acdelco spec for the steering box says input is a 0.720" 26 spline, but I cannot sind that size anywhere. Could it be a 26+4 spline (4 splines cut of for indexing) so the counterpart is a 9/16"-30???
And how about the other end? Is it a 3/4 DD?

THX for any help!

Re: Steering coupling shaft '88 G20 Van [Re: DrVan] #757056
February 20th 2020 5:23 pm
February 20th 2020 5:23 pm
Joined: Jan 2012
Posts: 8
Germany
D
DrVan Offline OP
stranger
DrVan  Offline OP
stranger
D
Joined: Jan 2012
Posts: 8
Germany
Bump...

Re: Steering coupling shaft '88 G20 Van [Re: DrVan] #757061
February 20th 2020 6:23 pm
February 20th 2020 6:23 pm
Joined: Jun 2010
Posts: 14,875
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 14,875
Van Diego California
Ive seen people using a socket universal as the coupler … a 3/8 or 1/2.
https://www.lowes.com/pd/Kobalt-3-Piece-1-4-in-3-8-in-1-2-in-to-U-Joint/1000382061


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Re: Steering coupling shaft '88 G20 Van [Re: DrVan] #757127
February 22nd 2020 4:57 pm
February 22nd 2020 4:57 pm
Joined: Apr 2010
Posts: 2,726
San Diego
W
wrcsixeight Offline
veteran
wrcsixeight  Offline
veteran
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Joined: Apr 2010
Posts: 2,726
San Diego
Check out offerings by Flaming River and Borgeson

Re: Steering coupling shaft '88 G20 Van [Re: DrVan] #757135
February 22nd 2020 8:36 pm
February 22nd 2020 8:36 pm
Joined: Jan 2014
Posts: 1,047
Staunton, VA
kursed Offline
old hand
kursed  Offline
old hand
Joined: Jan 2014
Posts: 1,047
Staunton, VA
I definitely wouldn't trust the ones made for ratchets. I've had so many of those break while using them one simple bolt removals, I'd be scared of trusting one to handle my steering. I have seen folks use them before too, but no thanks for me.

Summit offers some universal styles. I've seen a lot of other companies online sell them too. Especially for the rock crawler crowd who often need some custom sized units and heavy duty strength.

https://www.summitracing.com/parts/...zIjdiAovVEM7N0AuUm3nqNrBtI0aApbOEALw_wcB


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Re: Steering coupling shaft '88 G20 Van [Re: DrVan] #757136
February 22nd 2020 8:37 pm
February 22nd 2020 8:37 pm
Joined: Jan 2014
Posts: 1,047
Staunton, VA
kursed Offline
old hand
kursed  Offline
old hand
Joined: Jan 2014
Posts: 1,047
Staunton, VA


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