Power steering gear box fitting - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1970 C10 MJW · 05-04-2014, 12:59 PM

I am swapping to a 99 4.8l and i was wondering if anyone knew if there is an adaptor fitting or what the original threads are on the pressure hose and the factory gear box. Or just what you did thx so much guys

solidaxel · 05-04-2014, 01:25 PM

If you had power steering on your truck just remove the fitting, spring and valve in the old pump, everything should be the same!

1970 C10 MJW · 05-04-2014, 01:54 PM

Oh awesome! Thx i never even thought to do that. Are the pressures between the pumps close enough to where i dont have ro worry about blowing out seals etc

**truckdude239** · 05-04-2014, 02:02 PM

i just swaped the fittings out when to the junkyard and got one off a 73 chevy van screwed into ls pump used a stock hose and a used gear box i had off a parts truck no issuses yets swap everything out of the back of the pump fittign vavle and spring and it will feel like stock power steering

1970 C10 MJW · 05-04-2014, 02:11 PM

Awesome thx

solidaxel · 05-04-2014, 04:56 PM

I did not swap the spring and valve (yet) from my pump on the 350, and the steering is VERY "loose" feeling, I need to change the internals!

mattcrp1 · 05-05-2014, 12:33 PM

Same here, I had the LS style o-ring/fitting and swapped to an earlier flare style fitting. I haven't fired it up yet with this set up but I did use the early spring valve. The spring looked the same but the valve appears to have a different size hole.

**First c10** · 05-05-2014, 06:31 PM

Can anyone take a picture of the spring and valve? I am curious my old pump or the new ls pump have one.

**truckdude239** · 05-05-2014, 07:09 PM

i believe this is the right pictutre

solidaxel · 05-06-2014, 12:44 AM

Quote:

Originally Posted by truckdude239

i believe this is the right pictutre

Do you have the new one from the LS pump to compare the length with the old one, and did you change the spring also?

solidaxel · 05-06-2014, 01:04 AM

Quote:

Originally Posted by truckdude239

i believe this is the right pictutre

Do you have the new one from the LS pump to compare the length with the old one, and did you change the spring also?

solidaxel · 05-06-2014, 02:29 PM

Quote:

Originally Posted by truckdude239

i believe this is the right pictutre

How many washers are under the nut on the left side of the valve?

**First c10** · 05-05-2014, 07:15 PM

Interesting. Where does it go on the pump exactly?

**truckdude239** · 05-05-2014, 10:38 PM

On back of tge pump where the hose screws in it is a 1 inch fitting unscrew thst there is a vavle and spring behind tye fitting

Andy4639 · 05-05-2014, 11:22 PM

I also took the fitting off my old pump and just put it on the LS pump and it works great. I also have new S/S hoses coming from (PICKMUP)
a memeber on here for it. Here is his link.

http://67-72chevytrucks.com/vboard/s...hp?t=545846You

SierraMtns · 08-25-2019, 12:41 AM

Quote:

Originally Posted by truckdude239

On back of tge pump where the hose screws in it is a 1 inch fitting unscrew thst there is a vavle and spring behind tye fitting

Do you think Napa would sell just the valve and spring?

**First c10** · 05-06-2014, 12:37 AM

Behind this nut?

Custom 68 · 05-06-2014, 09:21 AM

Quote:

Originally Posted by First c10

Behind this nut?

yes take that "nut" out and it is the fitting. What I show in this pic is the newer metric 18mm o-ring fitting. I the valve and spring is behind this. Just unscrew this out and swap your old one in. Now I don't remember 100% and I don't know if I swapped the guts out or not. I need to look in my old pump. cause I just put it all back in the old one for safe keeping.
I did mine about 10 years ago and not had any issues.
I am about to swap to hydroboost and thought about using this new style fitting and stuff but it sounds like maybe I better just stick with what is currently in there and use it with the right hoses.

Andy4639 · 05-06-2014, 02:24 PM

I swapped it all out of my stock 71 pump.

**First c10** · 05-06-2014, 12:40 AM

Better pic

**truckdude239** · 05-06-2014, 02:35 AM

I do not I got that picture off the Web to show what it looks like. Yes behind that nut I know my steering feels great I swapped fitting spring and valve out of a 71 Chevy van

1976K5CHALET · 02-04-2016, 04:47 PM

Does someone sell an AN jic adapter fitting for the late saginaw (o ring) fitting style out of curiousity?

DW

foamypirate · 02-04-2016, 05:01 PM

Quote:

Originally Posted by 1976K5CHALET

Does someone sell an AN jic adapter fitting for the late saginaw (o ring) fitting style out of curiousity?

DW

Russell Performance sells them. I'm not sure exactly what sizes are used on the box/pump, but here is what they have.

-6 AN to 16mm x 1.5 o-ring seal - 648060
-6 AN to 14mm x 1.5 o-ring seal - 648070
-6 AN to 18mm x 1.5 o-ring seal- -648080

1976K5CHALET · 02-04-2016, 09:08 PM

I have a set i got of a guy on ebay for the box end. And a set for the future up grade to hydro boost when i have a job again someday. Laid off from the oil patch since last July. Thank you for the part numbers!

Andy69Blazer · 04-08-2016, 04:42 PM

Found this adapter on ebay: http://www.ebay.com/itm/161997290924

05-04-2014, 12:59 PM	#1
1970 C10 MJW Registered User Join Date: Aug 2012 Location: Indiana Posts: 470	Power steering gear box fitting I am swapping to a 99 4.8l and i was wondering if anyone knew if there is an adaptor fitting or what the original threads are on the pressure hose and the factory gear box. Or just what you did thx so much guys __________________ 70 C10 working on a LSx swap 4.8L MS3 edelbrock pro flo intake, pacesetter long tubes, 4l60e 2500 stall hoping the tranny holds up lol

05-04-2014, 01:25 PM	#2
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: Power steering gear box fitting If you had power steering on your truck just remove the fitting, spring and valve in the old pump, everything should be the same! __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

05-04-2014, 01:54 PM	#3
1970 C10 MJW Registered User Join Date: Aug 2012 Location: Indiana Posts: 470	Re: Power steering gear box fitting Oh awesome! Thx i never even thought to do that. Are the pressures between the pumps close enough to where i dont have ro worry about blowing out seals etc __________________ 70 C10 working on a LSx swap 4.8L MS3 edelbrock pro flo intake, pacesetter long tubes, 4l60e 2500 stall hoping the tranny holds up lol

05-04-2014, 02:02 PM	#4
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Power steering gear box fitting i just swaped the fittings out when to the junkyard and got one off a 73 chevy van screwed into ls pump used a stock hose and a used gear box i had off a parts truck no issuses yets swap everything out of the back of the pump fittign vavle and spring and it will feel like stock power steering __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-04-2014, 02:11 PM	#5
1970 C10 MJW Registered User Join Date: Aug 2012 Location: Indiana Posts: 470	Re: Power steering gear box fitting Awesome thx __________________ 70 C10 working on a LSx swap 4.8L MS3 edelbrock pro flo intake, pacesetter long tubes, 4l60e 2500 stall hoping the tranny holds up lol

05-04-2014, 04:56 PM	#6
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: Power steering gear box fitting I did not swap the spring and valve (yet) from my pump on the 350, and the steering is VERY "loose" feeling, I need to change the internals! __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

05-05-2014, 12:33 PM	#7
mattcrp1 Registered User Join Date: May 2010 Location: Mountain House, CA Posts: 555	Re: Power steering gear box fitting Same here, I had the LS style o-ring/fitting and swapped to an earlier flare style fitting. I haven't fired it up yet with this set up but I did use the early spring valve. The spring looked the same but the valve appears to have a different size hole. __________________ My Chevy habit is paid for by Ford diesels... Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355 Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748 Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974 IG mattcrp1

05-05-2014, 06:31 PM	#8
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: Power steering gear box fitting Can anyone take a picture of the spring and valve? I am curious my old pump or the new ls pump have one. __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!

05-05-2014, 07:09 PM	#9
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Power steering gear box fitting i believe this is the right pictutre Attached Images __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-05-2014, 07:15 PM	#13
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: Power steering gear box fitting Interesting. Where does it go on the pump exactly? __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!

05-05-2014, 10:38 PM	#14
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Power steering gear box fitting On back of tge pump where the hose screws in it is a 1 inch fitting unscrew thst there is a vavle and spring behind tye fitting __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-05-2014, 11:22 PM	#15
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Power steering gear box fitting I also took the fitting off my old pump and just put it on the LS pump and it works great. I also have new S/S hoses coming from (PICKMUP) a memeber on here for it. Here is his link. http://67-72chevytrucks.com/vboard/s...hp?t=545846You __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

05-06-2014, 12:37 AM	#17
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: Power steering gear box fitting Behind this nut? Attached Images __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!

05-06-2014, 02:24 PM	#19
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: Power steering gear box fitting I swapped it all out of my stock 71 pump. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

05-06-2014, 12:40 AM	#20
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: Power steering gear box fitting Better pic Attached Images __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!



Register or Log In To remove these advertisements.

05-06-2014, 02:35 AM	#21
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,237	Re: Power steering gear box fitting I do not I got that picture off the Web to show what it looks like. Yes behind that nut I know my steering feels great I swapped fitting spring and valve out of a 71 Chevy van __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

02-04-2016, 04:47 PM	#22
1976K5CHALET Senior Member Join Date: Jan 2003 Location: Grand Junction, Colorado Posts: 610	Re: Power steering gear box fitting Does someone sell an AN jic adapter fitting for the late saginaw (o ring) fitting style out of curiousity? DW __________________ Doug Wright aka K5NUTT over @coloradok5.com Owner of http://groups.yahoo.com/group/ChevyK5BlazerChalets Certified K5 Nut

02-04-2016, 09:08 PM	#24
1976K5CHALET Senior Member Join Date: Jan 2003 Location: Grand Junction, Colorado Posts: 610	Re: Power steering gear box fitting I have a set i got of a guy on ebay for the box end. And a set for the future up grade to hydro boost when i have a job again someday. Laid off from the oil patch since last July. Thank you for the part numbers! __________________ Doug Wright aka K5NUTT over @coloradok5.com Owner of http://groups.yahoo.com/group/ChevyK5BlazerChalets Certified K5 Nut

04-08-2016, 04:42 PM	#25
Andy69Blazer Registered User Join Date: Jan 2015 Location: Price, Utah Posts: 69	Re: Power steering gear box fitting Found this adapter on ebay: http://www.ebay.com/itm/161997290924

Register or Log In To remove these advertisements.