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#1 |
Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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5.3 swap power steering
I am doing a 5.3 swap and I have the 5.3 power steering pump. I currently have manual steering and was wondering what power steering box I need. The truck is a 1970 2wd. Thanks for the help.
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#2 |
A day late and $1 short...
Join Date: Dec 2008
Location: Northwest FL
Posts: 3,870
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Re: 5.3 swap power steering
A factory style power steering box will do fine. Several ways to go about connecting the lines, I used earls fittings and braided hose, but you could probably have one built at your local parts house.
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Buck Instagram: C10_ustacould 1963 SWB Fleet Side 528 Desert Beige Milly 1967 SWB Step Side 506 Medium Blue The Old Girl 1968 SWB Fleet Side 503 Light Green Ellie SOLD 1965 SWB Fleet Side 507 Light Blue Prescription Strength SOLD 1971 SWB Fleet Side 521 White Shiro SOLD 1968 SWB Step Side 503 Light Green My Old Farm Truck SOLD |
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#3 |
Registered User
![]() Join Date: Jan 2007
Location: Central Coast California
Posts: 1,026
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Re: 5.3 swap power steering
Count the splines on your manual box... I don't remember exactly what it is but it is different from the power box splines. It does however, match the spline count from an approx 1978+ power steering box that has matching metric o-ring hydraulic power steering hoses...(I'm not positive on the year Chevy switched from flare fittings to o-ring.)
Therefor, you can use your stock rag joint and buy stock power steering hoses (from that same 78+ truck.) That's what I did on my '72 5.3 conversion.
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1972 K20 Suburban 5.7/700r4/NP205 Dana 44/H052 Sold ![]() 1972 C10 5.3L/4L60E 12bolt 5Lug - Sold ![]() 1971 K5 Blazer 6.0L LQ9 4L60E NP205 Dana 44/H052!!! ![]() 1970 K3500 1ton CrewCab 8.1L/Allison1000/NP205 Dana 60/14B!!!! - Sold ![]() ![]() ![]() 1984 K10 SWB 7.4L/4L80e/NP208 Corp 10/12 bolt Sold ![]() 1988 V30 CCLB 7.4L/TH400/NP205/Dana 60/Dana 70/3.73!!! (Sold) ![]() 2003 K2500HD 8.1/Allison1000/NP263 ![]() |
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#4 |
the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: 5.3 swap power steering
If you use a stock box you can use a factory 68-72 power steering hoses, if you pull the fitting the hose screws into out of an 68-72 power steering pump and replace the fitting on the back of your 5.3 pump.
This way you can get replacement parts at any parts store and it looks factory. Posted via Mobile Device
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67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, |
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#5 |
bbadfred
![]() Join Date: Mar 2008
Location: rantoul Il
Posts: 461
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Re: 5.3 swap power steering
My 67 GMC had 81 power steering and brakes when I got it in 97 and I used the stock hoses from the 04 truck LQ9 with a metric fitting for the 81 power steering box.
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#6 |
Registered User
Join Date: Jun 2009
Location: Columbus IN
Posts: 91
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Re: 5.3 swap power steering
Ok thanks for all the help guys.
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