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Old 09-09-2008, 10:21 PM   #26
rkyham
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Re: What power steering gearbox are you using?

Planning this swap on my 68
On using later model boxes: Does it matter if the box is from a 2wd or 4wd?
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Old 09-09-2008, 10:41 PM   #27
Richard8971
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Re: What power steering gearbox are you using?

My '67 short-step had manual steering until I swapped it out with a power steering box out of a '85. Bolted right up and didn't have to modify anything. I'm not sure about the 2 wheel drive vs. 4 wheel drive. Just my two cents.

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Old 09-10-2008, 10:00 AM   #28
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Re: What power steering gearbox are you using?

I got an OEM one off a '72 C-10 at a local bone yard. $50 & it bolted right up to my '68. If you are going the junk yard route, if the hydro lines have been removed make sure that NO WATER has gotten in the box. My first one blew because water had frozen inside & cracked the housing. If the fluid is milky, walk away.

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Old 09-10-2008, 12:44 PM   #29
WIDESIDE72
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Re: What power steering gearbox are you using?

A few yrs ago, my brother and I bolted a PS box from a 76 1/2 ton directly on to a 72 1/2 ton to add PS. No hose adapters, no bashing. I forget but think it was a variable ratio. We also swapped the front sway bar from the same truck. That first drive after the swap was like night and day!
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Old 09-10-2008, 03:11 PM   #30
MotorSeven
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Re: What power steering gearbox are you using?

The '72 donor i got the gearbox out of has a sway bar, i have to go back with a grinder & generator & get those honkin rivits out.

RD

Last edited by MotorSeven; 09-10-2008 at 03:47 PM.
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Old 09-10-2008, 03:26 PM   #31
big_al_71
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Re: What power steering gearbox are you using?

I used one from a brand new pump for a 71c10 and it bolted right up I had to add one washer on one bolt....because of the march pulley bracket if I was using a factory bracket I would not had needed it.
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Old 09-10-2008, 11:47 PM   #32
68GMCCustom
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Re: What power steering gearbox are you using?

nice bling!

I have the same looking March setup w/o A/C and in the "Custom" finish, which is the silver powdercoat. (the cheap set )
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Old 09-11-2008, 04:51 PM   #33
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Re: What power steering gearbox are you using?

Quote:
A few yrs ago, my brother and I bolted a PS box from a 76 1/2 ton directly on to a 72 1/2 ton to add PS. No hose adapters, no bashing. I forget but think it was a variable ratio. We also swapped the front sway bar from the same truck. That first drive after the swap was like night and day!
90% of the 68 and 100% of the 69-72s do not require any alterations on the chassis. However we are talking 67s here. 100% of the 67s will require alterations. WES
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Old 09-11-2008, 04:54 PM   #34
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Re: What power steering gearbox are you using?

Quote:
Wes, I remember you mentioning this before but I took my '77 gearbox and bolted it on to my '68, which has the indentations and raised mounting points and it's still twitchy. I'll have to double check to make sure that the steering wheel (or rather gearbox) is absolutely centered but I'm pretty sure it is and it's still twitchy. I just think that's the way these gearboxes are.
I would try a different steering gear. Quick ratio gears don't make things twitchy. WES
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Old 10-04-2008, 07:17 PM   #35
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Re: What power steering gearbox are you using?

I just bought this bracket for my 68... it's actually made for 60-66 frames to accept newer gears... I'm still trying to figure out the right position though. Also, my gearbox is leaking so it sounds like I need to save $130 for NAPA and not try the $30 rebuild kit huh?

So a 76 will accept the same hose fittings as a 72? and it's variable ratio 4.5 turns? that sounds like the ticket for me, unless you guys recommenf the 3.5 turn gears..
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Old 10-04-2008, 07:32 PM   #36
Brad
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Re: What power steering gearbox are you using?

Yep, that'll work great, although I'd think that the rebuild kit would fix your leak issue.
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Old 10-04-2008, 07:35 PM   #37
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Re: What power steering gearbox are you using?

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Originally Posted by Brad View Post
Yep, that'll work great, although I'd think that the rebuild kit would fix your leak issue.
It's leaking at the input shaft, of course that's because I blocked off the hoses and was turning it by hand. I have never had a pump on it so who knows....

I know there are dozens of ball bearings in these suckers and hate to waste my time and money....we'll see when the time comes I guess...

anyone tried to fix that seal? or a full rebuild?
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Old 10-04-2008, 08:30 PM   #38
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Re: What power steering gearbox are you using?

I dented the frame on a 67 before. Wasn't too bad if you heated it with a torch.

Tom
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