Questions on Power Steering - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**The Rocknrod** · 01-27-2018, 06:37 PM

I just had a couple of questions.
One is does this steering shaft look like a 3/4"-30? with the flat side and all I wasnt sure.
And the other is what type of hose fittings are these? O-ring?

**Captainfab** · 01-28-2018, 12:36 AM

Yes that is a 3/4" diameter shaft. I can not tell if it is 30 spline or 36. If you count the splines at about half way around that will tell you. That box accepts SAE inverted flare hose fittings

**The Rocknrod** · 01-28-2018, 10:55 AM

Thank you Captainfab, always helpful.

So this would show 30.

padresag · 01-28-2018, 01:14 PM

is this a difference between 3/4 t and 1/2t? I have the larger one on mine. when I went to replace it once and ordered one it came with the smaller spline. had to reorder to get the correct one. vintage was 76 4 x 4
ron

**The Rocknrod** · 01-28-2018, 04:03 PM

I think if you look in Rock-Auto and bring up both units it would show if there is a difference, that's what I would do.

padresag · 01-28-2018, 04:23 PM

Quote:

Originally Posted by The Rocknrod

I think if you look in Rock-Auto and bring up both units it would show if there is a difference, that's what I would do.

I am not looking for anything, but commenting on the differences which I found about 20 years ago
ron

**Captainfab** · 01-29-2018, 12:26 AM

Yep, looks like it is 30 spline.

Quote:

Originally Posted by The Rocknrod

Thank you Captainfab, always helpful.

So this would show 30.

01-27-2018, 06:37 PM	#1
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Questions on Power Steering I just had a couple of questions. One is does this steering shaft look like a 3/4"-30? with the flat side and all I wasnt sure. And the other is what type of hose fittings are these? O-ring? Attached Images __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

01-28-2018, 12:36 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Questions on Power Steering Yes that is a 3/4" diameter shaft. I can not tell if it is 30 spline or 36. If you count the splines at about half way around that will tell you. That box accepts SAE inverted flare hose fittings __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

01-28-2018, 10:55 AM	#3
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Questions on Power Steering Thank you Captainfab, always helpful. So this would show 30. Attached Images __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

01-28-2018, 01:14 PM	#4
padresag Registered User Join Date: Feb 2008 Location: Sidney,b.c. Posts: 4,425	Re: Questions on Power Steering is this a difference between 3/4 t and 1/2t? I have the larger one on mine. when I went to replace it once and ordered one it came with the smaller spline. had to reorder to get the correct one. vintage was 76 4 x 4 ron

01-28-2018, 04:03 PM	#5
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Questions on Power Steering I think if you look in Rock-Auto and bring up both units it would show if there is a difference, that's what I would do. __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?



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