steering box interchange? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

robby · 03-03-2003, 12:31 AM

Can I use later model power steering box on a 69-70 GMC K10 that doesn't have power steering now?
Thanks

Mudder · 03-03-2003, 01:50 AM

I believe they are the same but you may run iinto problems with the rag joint splines. Some had different slpines and were different sized shafts.

robby · 03-04-2003, 12:01 AM

Thanks Mudder, would it work if I left on the rag joint from the later model box?

red450ih · 03-04-2003, 12:04 PM

Any 73-87 PS box will bolt up. Just use the rag joint that comes with the box. Somewhere around 78 they have a smaller imput shaft (where rag joint goes).

Keith

Mike C · 03-04-2003, 12:11 PM

Also, sometime in the early 80's they switched from flare fittings to o-ring fittings on the hoses. You will have to get a matching pump or change the rear fitting to match the box. (Or have custom hoses made)

robby · 03-04-2003, 09:10 PM

Thanks

03-03-2003, 12:31 AM	#1
robby Semper Fidelis Join Date: Dec 2001 Location: Cedar City, Utah Posts: 654	steering box interchange? Can I use later model power steering box on a 69-70 GMC K10 that doesn't have power steering now? Thanks __________________ 72 Chevy C 20 with 402 For sale 85 GMC K2500 83 Trans Am Cedar City, Utah (Missouri Native)

03-04-2003, 12:01 AM	#3
robby Semper Fidelis Join Date: Dec 2001 Location: Cedar City, Utah Posts: 654	Thanks Mudder, would it work if I left on the rag joint from the later model box? __________________ 72 Chevy C 20 with 402 For sale 85 GMC K2500 83 Trans Am Cedar City, Utah (Missouri Native)

03-04-2003, 12:04 PM	#4
red450ih Registered User Join Date: Mar 2001 Location: Nashville, Tennessee Posts: 225	Any 73-87 PS box will bolt up. Just use the rag joint that comes with the box. Somewhere around 78 they have a smaller imput shaft (where rag joint goes). Keith __________________ GMC

03-04-2003, 12:11 PM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,727	Also, sometime in the early 80's they switched from flare fittings to o-ring fittings on the hoses. You will have to get a matching pump or change the rear fitting to match the box. (Or have custom hoses made) __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

03-04-2003, 09:10 PM	#6
robby Semper Fidelis Join Date: Dec 2001 Location: Cedar City, Utah Posts: 654	Thanks __________________ 72 Chevy C 20 with 402 For sale 85 GMC K2500 83 Trans Am Cedar City, Utah (Missouri Native)

03-03-2003, 01:50 AM	#2
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	I believe they are the same but you may run iinto problems with the rag joint splines. Some had different slpines and were different sized shafts.

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