Another ?? Steering coupler - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kcfirstbuild · 10-16-2011, 05:46 PM

I have a 68 c10 with ram assisted power steering. From what i understand it still uses the manual steering gear box. I ordered a new steering coupler rag joint assembly. I can't get it to go on like the old one.

I have heard that power steering and manual steering have two different sized rag joints. So I ordered the manual steering rag joint assembly, do to that fact I think i have a manual steering gear box.

I look a close look at the new one and I noticed that there is a section that is not splined. So i dont know if I ordered the wrong one or if this one is defective.

hugger6933 · 10-16-2011, 06:13 PM

That is a master spline so it won't go on but one way . Also be careful I think the rag is dirrernt for 68 than 69-72, I know the shaft is[intermediate that is]

kcfirstbuild · 10-17-2011, 08:44 AM

So this coupler is not defective ? My shaft doesn't have a flat spot .

geezer#99 · 10-17-2011, 08:59 AM

Your pic shows a D style coupler. THey also make a double D and smooth types.You want a splined type coupler which has teeth all around. Yours could have 36 or 48 splines. You'll need to count them to be sure.

kcfirstbuild · 10-17-2011, 08:22 PM

I counted and i came up with 30 splines ?

geezer#99 · 10-17-2011, 10:28 PM

30 splines in the one in the pic. Or your original.
My info comes from the CPP catologue.
Maybe post a pic of your old one.

kcfirstbuild · 10-19-2011, 08:51 AM

30 spline is my old one. With no flat spot. I tried calling Truck and car shop but some one has to call me back for technical crap. Still haven't heard from them. Looks like they might just get it back.

vectorit · 10-19-2011, 09:34 AM

I went through the same thing not to long ago.
I told the guys at the Truck Shop to go over to the car section, and see if they could find what I had. Sure enough they found it, and it was for an Impala I think? My manual gearbox has a 360 degree tooth like yours.

There is no difference in the size or ruggedness for the car rag joint, as compared to the one out of the book for the truck so it's no big deal.

I just think the keyed version is more popular is all.

kcfirstbuild · 10-19-2011, 08:18 PM

OH could you find out for sure what you ordered !!! I think we have to same thing. My heads hurt trying to figure this out !!

kcfirstbuild · 10-20-2011, 08:43 PM

ok so I think I have a 36 spline now that I counted it again.

Here is a picture of my Old one and the end of the gear box . See if you come up with 36 also. I was told to only count half and time by two. Two of the same pictures sorry

kcfirstbuild · 10-20-2011, 08:45 PM

Lets try this again. Here is the other one I was trying to post.

kcfirstbuild · 10-20-2011, 08:59 PM

Would a Dorman 31015 work ?

10-16-2011, 05:46 PM	#1
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Another ?? Steering coupler I have a 68 c10 with ram assisted power steering. From what i understand it still uses the manual steering gear box. I ordered a new steering coupler rag joint assembly. I can't get it to go on like the old one. I have heard that power steering and manual steering have two different sized rag joints. So I ordered the manual steering rag joint assembly, do to that fact I think i have a manual steering gear box. I look a close look at the new one and I noticed that there is a section that is not splined. So i dont know if I ordered the wrong one or if this one is defective. Attached Images

10-16-2011, 06:13 PM	#2
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Another ?? Steering coupler That is a master spline so it won't go on but one way . Also be careful I think the rag is dirrernt for 68 than 69-72, I know the shaft is[intermediate that is]

10-17-2011, 08:44 AM	#3
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler So this coupler is not defective ? My shaft doesn't have a flat spot .

10-17-2011, 08:59 AM	#4
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,731	Re: Another ?? Steering coupler Your pic shows a D style coupler. THey also make a double D and smooth types.You want a splined type coupler which has teeth all around. Yours could have 36 or 48 splines. You'll need to count them to be sure.

10-17-2011, 08:22 PM	#5
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler I counted and i came up with 30 splines ?

10-17-2011, 10:28 PM	#6
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,731	Re: Another ?? Steering coupler 30 splines in the one in the pic. Or your original. My info comes from the CPP catologue. Maybe post a pic of your old one.

10-19-2011, 08:51 AM	#7
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler 30 spline is my old one. With no flat spot. I tried calling Truck and car shop but some one has to call me back for technical crap. Still haven't heard from them. Looks like they might just get it back.

10-19-2011, 09:34 AM	#8
vectorit What? Join Date: Jun 2007 Location: Southern California Posts: 7,617	Re: Another ?? Steering coupler I went through the same thing not to long ago. I told the guys at the Truck Shop to go over to the car section, and see if they could find what I had. Sure enough they found it, and it was for an Impala I think? My manual gearbox has a 360 degree tooth like yours. There is no difference in the size or ruggedness for the car rag joint, as compared to the one out of the book for the truck so it's no big deal. I just think the keyed version is more popular is all. __________________ Chris 1968 K20 Suburban 1972 K10 LWB PU

10-19-2011, 08:18 PM	#9
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler OH could you find out for sure what you ordered !!! I think we have to same thing. My heads hurt trying to figure this out !!

10-20-2011, 08:43 PM	#10
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler ok so I think I have a 36 spline now that I counted it again. Here is a picture of my Old one and the end of the gear box . See if you come up with 36 also. I was told to only count half and time by two. Two of the same pictures sorry Attached Images

10-20-2011, 08:45 PM	#11
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler Lets try this again. Here is the other one I was trying to post. Attached Images

10-20-2011, 08:59 PM	#12
kcfirstbuild Registered User Join Date: Aug 2009 Location: Red Wing Mn Posts: 526	Re: Another ?? Steering coupler Would a Dorman 31015 work ?

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