Need help getting a u-joint for my steering - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gottwake · 05-20-2010, 10:51 PM

This is my pump. It has a flat spot and the spline count is 30 with two half splines on either side of the flat area. Its 3/4". I orderd a 3/4 DD X 3/4 - 30. But it's too small.

**Yukon Jack** · 05-20-2010, 11:21 PM

It is probably 3/4 with 36 spline - check my reply in this thread out.

gottwake · 05-21-2010, 01:34 AM

So my pump is not abnormal with the flat spot? Who to call to get someone who knows these parts to help me? Thanks.

Burt4x4 · 05-21-2010, 08:42 AM

When you count the splines you need to include the flat spot. I used Borgeson http://www.borgeson.com/
It's been several years so I can't remember but I think YJ is correct 36 spline.
After 72 pretty sure GM changed the gearbox...might be 74 again I can't remember

msgross · 05-21-2010, 08:45 AM

I suggest that you check this thread out... CPPJeff will get you whatever you need..

http://67-72chevytrucks.com/vboard/s...hlight=shafted

orange72blazer · 05-21-2010, 10:41 AM

The spline size on the steering box is 13/16 36 spline or at least mine was. Here is a link to a chart with sizes http://www.flamingriver.com/p_view_i..._Tech_Tips.gif

05-20-2010, 10:51 PM	#1
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Need help getting a u-joint for my steering This is my pump. It has a flat spot and the spline count is 30 with two half splines on either side of the flat area. Its 3/4". I orderd a 3/4 DD X 3/4 - 30. But it's too small. Attached Images __________________ Blazer Project Last edited by gottwake; 05-20-2010 at 10:52 PM.

05-20-2010, 11:21 PM	#2
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Re: Need help getting a u-joint for my steering It is probably 3/4 with 36 spline - check my reply in this thread out. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14

05-21-2010, 01:34 AM	#3
gottwake Registered User Join Date: Oct 2007 Location: Santa Clarita, CA Posts: 581	Re: Need help getting a u-joint for my steering So my pump is not abnormal with the flat spot? Who to call to get someone who knows these parts to help me? Thanks. __________________ Blazer Project

05-21-2010, 08:42 AM	#4
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: Need help getting a u-joint for my steering When you count the splines you need to include the flat spot. I used Borgeson http://www.borgeson.com/ It's been several years so I can't remember but I think YJ is correct 36 spline. After 72 pretty sure GM changed the gearbox...might be 74 again I can't remember __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

05-21-2010, 08:45 AM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: Need help getting a u-joint for my steering I suggest that you check this thread out... CPPJeff will get you whatever you need.. http://67-72chevytrucks.com/vboard/s...hlight=shafted __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

05-21-2010, 10:41 AM	#6
orange72blazer Registered User Join Date: Dec 2003 Location: West Michigan Posts: 447	Re: Need help getting a u-joint for my steering The spline size on the steering box is 13/16 36 spline or at least mine was. Here is a link to a chart with sizes http://www.flamingriver.com/p_view_i..._Tech_Tips.gif __________________ 1972 Chevy Blazer 1997 GMC Sierra 2009 Chevy Tahoe Last edited by orange72blazer; 05-21-2010 at 10:51 AM. Reason: added link

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.