How do I replace steering box seal? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Yukon Jack** · 05-08-2009, 09:29 AM

I've got a power steering gear box from like a 1978 truck and it is leaking at the seal located here. There is a flat dust seal and than a regular seal under it that will be replaced. I have taken the snap ring off but not sure what I do next to remove and replace the two seals.

Anyone able to help me out with how this is done?

my67chevytruck · 05-08-2009, 10:16 AM

maybe this will help a diff gear box but shouldnt be too far off.

http://www.pirate4x4.com/forum/showthread.php?t=570869

tqlspec · 05-08-2009, 01:36 PM

thanks for the website. Looks like I had the same question and posted thread too quickly. This website info looks greaat and is what I was looking for.

blakeaz33 · 05-08-2009, 06:48 PM

I just replaced mine and it pretty easy - I left my box in the truck, pulled the rag joint, used a hammer and a flat punch to loosen the flat nut. The center spins out easily, I used a hook tool to get it going but it isn't much more than hand tight. There are 2 seals, one that is visible in your picture, along with another behind it and an o-ring. I got my input seal kit from Napa, they're the best in my area. The part number is the same for 2WD 1/2 and 3/4 ton 1968-1978 - then the part number changes in 1979 (I have a 79 box in my 68 and the part for the 78 and older will not work, took 3 trips to the part store to figure it out). You should be able to do it in under an hour, not bad at all.

sdailey · 05-08-2009, 07:28 PM

Mark,

I just recently rebuilt my gear box using this article from Fourwheeler and it was really helpful.

http://www.fourwheeler.com/techartic...ild/index.html

05-08-2009, 09:29 AM	#1
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,684	How do I replace steering box seal? I've got a power steering gear box from like a 1978 truck and it is leaking at the seal located here. There is a flat dust seal and than a regular seal under it that will be replaced. I have taken the snap ring off but not sure what I do next to remove and replace the two seals. Anyone able to help me out with how this is done? __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 Last edited by Yukon Jack; 05-08-2009 at 09:29 AM.

05-08-2009, 10:16 AM	#2
my67chevytruck Under Construction Join Date: Oct 2007 Location: Midlothian,TX (DFW) Posts: 4,555	Re: How do I replace steering box seal? maybe this will help a diff gear box but shouldnt be too far off. http://www.pirate4x4.com/forum/showthread.php?t=570869 __________________ Heath subscribe to the board here: http://67-72chevytrucks.com/vboard/payments.php http://67-72chevytrucks.com/vboard/s...d.php?t=157669 FAQ how to's 1956 Chevy Apache 1967 C10 SWB FleetSide (under construction) 1969 K10 SWB FleetSide (Future Build) 1972 C10 SWB Stepside (Future Build) 56 chevy truck : http://www.cardomain.com/ride/2955823/1 67 truck build: http://www.67-72chevytrucks.com/vboard/showthread.php?t=281357/1 69 k10: http://67-72chevytrucks.com/vboard/s...d.php?t=389470

05-08-2009, 01:36 PM	#3
tqlspec Registered User Join Date: Feb 2008 Location: Jackson, TN Posts: 99	Re: How do I replace steering box seal? thanks for the website. Looks like I had the same question and posted thread too quickly. This website info looks greaat and is what I was looking for.

05-08-2009, 06:48 PM	#4
blakeaz33 Registered User Join Date: Nov 2007 Location: Scottsdale, AZ Posts: 152	Re: How do I replace steering box seal? I just replaced mine and it pretty easy - I left my box in the truck, pulled the rag joint, used a hammer and a flat punch to loosen the flat nut. The center spins out easily, I used a hook tool to get it going but it isn't much more than hand tight. There are 2 seals, one that is visible in your picture, along with another behind it and an o-ring. I got my input seal kit from Napa, they're the best in my area. The part number is the same for 2WD 1/2 and 3/4 ton 1968-1978 - then the part number changes in 1979 (I have a 79 box in my 68 and the part for the 78 and older will not work, took 3 trips to the part store to figure it out). You should be able to do it in under an hour, not bad at all.

05-08-2009, 07:28 PM	#5
sdailey The Few, The Proud Join Date: Jun 2007 Location: Ball Ground, Georgia Posts: 1,830	Re: How do I replace steering box seal? Mark, I just recently rebuilt my gear box using this article from Fourwheeler and it was really helpful. http://www.fourwheeler.com/techartic...ild/index.html __________________ Shannon



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