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#1 |
Registered User
![]() Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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Does anyone know if a (quick ratio) steering box out of a 73' or 74' GM pickup will fit in the 69-72's without issue?
I think these '73/'74 units were still (pre-metric) imperial fittings, etc but to my understanding they had an option for a little faster ratio which would be a nice upgrade? I'm talking 2wd 1/2 ton to 2wd 1/2 ton interchange Anything to watch for or problems? steering knuckle fit etc or? Thanks Coley
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....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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#2 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Steering Box- interchange?
Yes, the box will interchange without mods.
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I'm on the Instagram- @Gearhead_Kevin |
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#3 |
Registered User
Join Date: Feb 2013
Location: Northwest NJ
Posts: 684
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Re: Steering Box- interchange?
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#4 |
*************
![]() Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,846
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Re: Steering Box- interchange?
What's the difference in the 2 ratios? What would be a good aftermarket box to purchase? TIA.
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Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
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#5 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Steering Box- interchange?
IIRC the later boxes are actually a Variable Ratio and are 3 1/2 turns lock to lock. The originals are 4 1/2 turns LTL and are not variable.
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The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#6 |
Senior Member
![]() ![]() Join Date: Sep 2008
Location: Harrison, Arkansas
Posts: 9,815
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Re: Steering Box- interchange?
I've always just gone to my favorite auto parts store and asked for a box for a 1978 model.
In years past the input shaft was the same as the 67-72 and I could use the old rag joint. The last three I did required a new rag joint for the smaller diameter input shaft. As old as these original joints are, it's not a bad idea to change it anyway.
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other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless. |
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#7 | |
Registered User
Join Date: Mar 2017
Location: Grand Island, NE
Posts: 44
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Re: Steering Box- interchange?
Quote:
Onebean |
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#8 | |
Registered User
![]() Join Date: Oct 2011
Location: Victoria, B.C
Posts: 3,794
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![]() Quote:
Maybe that was the final year for the imperial stuff....? Coley
__________________
....for some men, there is experience, skill and effort....for the others...there is visa and UPS LOL 1966 Chevy 1/2 ton (Florida- Red/white) 1972 Chevy 1/2 ton (California- Blue/white) 2005 Chevy Silverado HD2500/Duramax 2000 Dodge Ram 1500 |
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#9 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,370
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Re: Steering Box- interchange?
I don't think gm went to metric until the early 80s. 1981 maybe???
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Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's ‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue ‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0 ![]() |
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#10 |
Registered User
Join Date: Oct 2016
Location: Austin, Texas
Posts: 306
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Re: Steering Box- interchange?
I got the Red Head quick ratio gear. I read really good reviews. Ive had it on my truck for about 5 months now and am very happy so far, they are a bit pricey $349.95 but after all the reviews I read I believe its a very high quality unit.
http://www.classicheartbeat.com/67-72_chassis_2.htm |
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#11 |
Registered User
![]() Join Date: May 2013
Location: WEST PALM FLORIDA
Posts: 1,174
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Re: Steering Box- interchange?
I have a 1978 power steering box in my 68 c10 , replaced the old [leaking everywhere ]ram assist that was on it stock , love the feel of it now , changed the handling drastically in a good way .
I think I counted 12 fittings on the ram assist , most of them leaked .
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68 Long Fleet , ly6 , turbo 350 , 3-5 drop , original paint , front discs 67 Small window , 7 foot bed , tweaked 6.0 LSX 2004R Medium Olive 58 Apache fleet , 235 , offy intake , dual exhaust , 4 on the floor , red/white 69 Long Fleet , Custom , 6.0, 4l60 , AC , Medium Olive |
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#12 | |
*************
![]() Join Date: Apr 2005
Location: Pensacola, FL
Posts: 17,846
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Re: Steering Box- interchange?
Quote:
__________________
Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3 |
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#13 | |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
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Re: Steering Box- interchange?
Quote:
If you know someone with a square body, feel their assist and you'll notice the difference.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#14 |
I am a Referee of life.
Join Date: Jun 2000
Location: Greensboro N.C.
Posts: 13,993
|
Re: Steering Box- interchange?
I used a 81^ box on mine and a PS pump and brackets from a 74 or so Nova. The fittings didn't work with each other so I9 swapped the one from the back of the 81^ pump into the Nova Pump and used the factory hoses. I'll have some that fit better made but what I have works really good, they're just too long. That fitting in the back of the pump is the only real change needed to be able to use the later hoses.
__________________
The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil" |
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#15 |
70+ ( Old Skool Club )
![]() Join Date: Nov 2003
Location: Saskatoon, Saskatchewan ,Canada
Posts: 9,115
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Re: Steering Box- interchange?
So is bottom line here the fact that a steering box from a 1978 C10 is a bolt in?
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1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021 |
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#16 |
Senior Member
![]() ![]() Join Date: Sep 2008
Location: Harrison, Arkansas
Posts: 9,815
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Re: Steering Box- interchange?
Yes. May require a new rag joint. Around $135 US plus core at most parts stores.
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other Larry Build thread, Arkansas K10 https://67-72chevytrucks.com/vboard/...=755797&page=5 The ability to speak several languages is an asset, but the ability to keep your mouth shut in any language is priceless. |
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#17 | ||
Registered User
Join Date: Mar 2017
Location: Grand Island, NE
Posts: 44
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Re: Steering Box- interchange?
Quote:
Quote:
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#18 |
Registered User
Join Date: Jun 2010
Location: San Diego Co.
Posts: 1,162
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Re: Steering Box- interchange?
Sub'd.
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1972 Chevy C-10, SWB, Fleet, 350/350, PS, PB, HEI, mostly stock, Survivor. ![]() |
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#19 |
Registered User
Join Date: Jun 2013
Location: Carlsbad, California
Posts: 165
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Re: Steering Box- interchange?
Are any members using a 12:1 box on a daily driver? I would like to speed up my ratio, but wonder if 14:1 is quick enough for occasional autocross on a short bed truck? Would the 12:1 be too busy on the freeway?
Russ
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#20 |
Registered User
Join Date: Mar 2017
Location: Louisville
Posts: 46
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Re: Steering Box- interchange?
Subscribed
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