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11-10-2019, 08:14 PM
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#1 |
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Senior Member
 
Join Date: Aug 2010
Location: North Alabama
Posts: 1,027
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Differences between 1972 2wd 350 and 4x4 350
I will be returning my 72' 3/4 4x4 Suburban engine compartment back to stock. I found a complete 1972 2wd truck 350 to swap in but, was curious what is different between 2wd and 4wd? I know the radiator hose pipe is and that is about it as far as my knowledge on the subject goes. Anything else different on the 4wd 350 engine compartments? Thanks in advance.
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1970 C10 to K20 conversion 1974 GMC Jimmy 1968 50th Anniversary Short Bed 1968 Chevelle 1964 Comet Caliente 1990 W250 Cummins |
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11-10-2019, 11:13 PM
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#2 |
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Registered User
Join Date: Nov 2014
Location: Bigfork, Montana
Posts: 1,137
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Re: Differences between 1972 2wd 350 and 4x4 350
If it has A/C the vacuum can mounted to the AC box has an offset bracket on the 4x4. I'm guessing it gives more clearance to the valve cover because the motor is set back?
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11-11-2019, 12:51 AM
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#3 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,862
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Re: Differences between 1972 2wd 350 and 4x4 350
Dipstick and tube is longer and bends forward on 4wd
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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11-12-2019, 01:29 AM
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#4 |
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Senior Member
Join Date: Aug 2010
Location: North Alabama
Posts: 1,027
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Re: Differences between 1972 2wd 350 and 4x4 350
Good information guys. Non A/C ruck.
__________________
1970 C10 to K20 conversion 1974 GMC Jimmy 1968 50th Anniversary Short Bed 1968 Chevelle 1964 Comet Caliente 1990 W250 Cummins |
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11-21-2019, 12:15 AM
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#5 |
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Senior Member
Join Date: Apr 2006
Location: Yuba City, Ca
Posts: 1,920
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Re: Differences between 1972 2wd 350 and 4x4 350
Engine mounts?
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Kirk 72 Blazer CST 4wd highlander 66 Nova |
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12-17-2019, 02:51 AM
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#6 |
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Registered User
Join Date: May 2013
Location: Post Falls, ID
Posts: 884
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Re: Differences between 1972 2wd 350 and 4x4 350
not sure about '72 but, my '68C10 uses front motor mount location and my '68 K20 used rear motor mount location in order for the oil pan to clear the front axle.
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01-03-2020, 11:28 PM
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#7 | |
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Senior Member
Join Date: Dec 2015
Location: Brooklet, Georgia
Posts: 834
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Re: Differences between 1972 2wd 350 and 4x4 350
Quote:
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01-03-2020, 11:29 PM
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#8 |
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Senior Member
Join Date: Dec 2015
Location: Brooklet, Georgia
Posts: 834
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Re: Differences between 1972 2wd 350 and 4x4 350
Fan shroud is different for 4x4.
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01-06-2020, 09:31 PM
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#9 |
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Registered User
Join Date: Jul 2014
Location: Chico, California
Posts: 940
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Re: Differences between 1972 2wd 350 and 4x4 350
Throttle cable is shorter on 4x4 ('71-72).
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01-07-2020, 08:12 AM
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#10 |
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Registered User
Join Date: Aug 2009
Location: Alden NY
Posts: 2,705
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Re: Differences between 1972 2wd 350 and 4x4 350
I don't know if/when it might have changed year wise, but the AC vacuum canister on the 4X4's was metal whereas the 2WD were plastic. Won't apply to your non AC truck obviously.
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1961 C1 Corvette 1959 El Camino 350 TPI, 9" 4 w disc 69 Blazer K5 - sold July '20 2021 Durango RT 5.7 |
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01-07-2020, 10:51 AM
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#11 |
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Registered User
Join Date: Jul 2014
Location: Chico, California
Posts: 940
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Re: Differences between 1972 2wd 350 and 4x4 350
Exhaust manifolds are also different. On 4x4 they go straight down, and on 2wd they angle back.
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