power steering fitting sizes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

454HO · 05-13-2008, 05:24 AM

Anyone know what size fittings fit the output of a mid 80's power steering pump and the input to a hydraboost booster??

I know it is either 18mm x 1.5 O-ring or 16mm x 1.5 O-ring, but I forgot to measure when I was at the shop yesterday. I need to get the fittings ordered asap so I can make a up a AN hose. They look like this:

FWIW, if you ever do a non-standard engine transplant, do not expect to splice together two power steering hoses with a barbed coupling and hose clamps. It won't hold, and when it lets loose it will spray hot power steering fluid everywhere. Yes, I speak from experience.

454HO · 05-14-2008, 11:53 PM

I went over to the shop and got my hacked-up power steering hose last night. The pump end is 16mm and the hydraboost end is 18mm, both are saginaw O-ring type fittings. So I just got the parts ordered from Speedway Motors to build a custom high pressure hose. With 2 day shipping, the total order is $87.67.

Hopefully this is the last thing I need to get my truck on the road this weekend.

05-13-2008, 05:24 AM	#1
454HO Registered User Join Date: Apr 2005 Location: Austin, TX Posts: 1,223	power steering fitting sizes Anyone know what size fittings fit the output of a mid 80's power steering pump and the input to a hydraboost booster?? I know it is either 18mm x 1.5 O-ring or 16mm x 1.5 O-ring, but I forgot to measure when I was at the shop yesterday. I need to get the fittings ordered asap so I can make a up a AN hose. They look like this: FWIW, if you ever do a non-standard engine transplant, do not expect to splice together two power steering hoses with a barbed coupling and hose clamps. It won't hold, and when it lets loose it will spray hot power steering fluid everywhere. Yes, I speak from experience. __________________ - Greg Last edited by 454HO; 05-13-2008 at 05:25 AM.

05-14-2008, 11:53 PM	#2
454HO Registered User Join Date: Apr 2005 Location: Austin, TX Posts: 1,223	Re: power steering fitting sizes I went over to the shop and got my hacked-up power steering hose last night. The pump end is 16mm and the hydraboost end is 18mm, both are saginaw O-ring type fittings. So I just got the parts ordered from Speedway Motors to build a custom high pressure hose. With 2 day shipping, the total order is $87.67. Hopefully this is the last thing I need to get my truck on the road this weekend. __________________ - Greg



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.