Steering grearbox leak question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Orence1 · 07-26-2006, 08:33 PM

Looks like I have a seal leak in my PS gearbox. Dry around the hose connections but dripping off the end of the Pittman Arm shaft. I have a new lower seal repair kit but have not attempted this yet. Any suggestions? I know I need a Pittman Arm puller. How tough is it to get the lower seal out and replace it? Any help appreciated.
Thanks,
Larry

Orence1 · 07-27-2006, 09:16 AM

Has nobody tried this? Is everyone replacing the gear box?
Thanks,
Larry

BUDDY · 07-27-2006, 10:35 AM

Quote:

Originally Posted by Orence1

Has nobody tried this? Is everyone replacing the gear box?
Thanks,
Larry

This is one of those things that you really have to have experience in doing. Kinda like setting gears up. It's usually a lot easier to just replace the entire gearbox, because you have to take it off to replace the seal anyway, then it's suspect whether or not you've put it back together right or not.

For my money, (& time), it's worth it to me to just replace the whole thing.

HTH,

Buddy

SB406 · 07-27-2006, 10:54 AM

Replaced the top seal on mine in truck. piece of cake. Dunno about the lower.

jhow66 · 07-27-2006, 10:57 AM

Top seal=easy, bottom seal=***** (didn't work either) , replace unit=warrenty

Myself · 07-27-2006, 11:20 AM

Yes, the whole gearbox has to come apart. Then you have to make sure you center it correctly when putting it back together. And also set up the preload properly. If you don't get it right it won't work right. Not worth the effort. Now would be a good time to upgrade to a newer, quicker ratio box.

Jonce · 07-28-2006, 08:12 AM

I plan on replacing my gearbox this weekend - any tips? Is it just an unbolt > remove > install new box > bolt up project?

Myself · 07-28-2006, 10:23 AM

Yes, a simple bolt and unbolt. If you use a newer o'ring style box, make sure you get the hoses too. Then just splice the new high pressure hose onto your old pump side at the steel with a compression fitting.

Orence1 · 07-28-2006, 06:06 PM

Thanks for the help. I will look into a new gearbox.
Larry

the70chev · 07-28-2006, 11:22 PM

SB406 How did you replace that top seal without taking the whole thing apart?

You are talking about the square piece on top withe the four bolts, Right?

07-26-2006, 08:33 PM	#1
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Steering grearbox leak question Looks like I have a seal leak in my PS gearbox. Dry around the hose connections but dripping off the end of the Pittman Arm shaft. I have a new lower seal repair kit but have not attempted this yet. Any suggestions? I know I need a Pittman Arm puller. How tough is it to get the lower seal out and replace it? Any help appreciated. Thanks, Larry

07-27-2006, 09:16 AM	#2
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Re: Steering grearbox leak question Has nobody tried this? Is everyone replacing the gear box? Thanks, Larry

07-27-2006, 10:54 AM	#4
SB406 FORD is a 4 letter word. Join Date: Feb 2006 Location: Western NY Posts: 99	Re: Steering grearbox leak question Replaced the top seal on mine in truck. piece of cake. Dunno about the lower. __________________ '71 406 GMC Short Box Fleetside - Daily Driver '79 350 Chevy K-5 Blazer - On-going Project (Mudder)www.wnyoffroad.com '58 LT1 Chevy Short Box Step Side - Next Project

07-27-2006, 10:57 AM	#5
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Re: Steering grearbox leak question Top seal=easy, bottom seal=***** (didn't work either) , replace unit=warrenty __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

07-27-2006, 11:20 AM	#6
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,142	Re: Steering grearbox leak question Yes, the whole gearbox has to come apart. Then you have to make sure you center it correctly when putting it back together. And also set up the preload properly. If you don't get it right it won't work right. Not worth the effort. Now would be a good time to upgrade to a newer, quicker ratio box.

07-28-2006, 08:12 AM	#7
Jonce Registered User Join Date: Jul 2006 Location: Twin Cities, MN Posts: 115	Re: Steering grearbox leak question I plan on replacing my gearbox this weekend - any tips? Is it just an unbolt > remove > install new box > bolt up project?

07-28-2006, 10:23 AM	#8
Myself Registered User Join Date: Oct 2005 Location: Northern Arkansas Posts: 1,142	Re: Steering grearbox leak question Yes, a simple bolt and unbolt. If you use a newer o'ring style box, make sure you get the hoses too. Then just splice the new high pressure hose onto your old pump side at the steel with a compression fitting.

07-28-2006, 06:06 PM	#9
Orence1 Registered User Join Date: Jan 2000 Location: Bothell, WA Posts: 548	Re: Steering grearbox leak question Thanks for the help. I will look into a new gearbox. Larry

07-28-2006, 11:22 PM	#10
the70chev Registered User Join Date: Jul 2006 Location: Reno, NV Posts: 14	Re: Steering grearbox leak question SB406 How did you replace that top seal without taking the whole thing apart? You are talking about the square piece on top withe the four bolts, Right?

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