2WD vs 4WD - The 1947 - Present Chevrolet & GMC Truck Message Board Network

makovai · 08-11-2006, 04:02 PM

I'm putting a new radiator in my rig and i cant figure out if the radiator hoses (upper and lower) are the same from 2WD to 4WD. They have different part numbers at the auto store but they only have 2WD hoses. Anyone no the answer.....are they the same?

see ten · 08-11-2006, 04:14 PM

If a blazer is like a pickup, on 4x4s the engine is further away from the radiator. I think the bottom hose sometimes has to be trimmed on a 2wd so you might get away with it but who knows. I think I would find a store that had what I needed in stock or just have the correct parts ordered. Of course if you gotta get it going yesterday, do what you gotta do!

lazygaurd · 08-11-2006, 04:28 PM

The four wheel drive, regardless of truck or Blazer has the motor sitting closer to the fire wall than a 2 wheel drive. Stock upper rad hoses on a 4x4 are also 2 piece rubber hose with the metal sleeve above the fan.

bouncytruck · 08-11-2006, 06:54 PM

You won't find the 4wd hose at a parts store. The original was a metal tube (they get rusty) with 4-6" of rubber hose on each end. The NAPA guy found me a nice hose that worked great, but the part number is gone now so I can't tell you what it is. I think I had to cut a few inches off of it to get it to fit properly. Take a look at the 2wd, but I don't think it will be right. Take a look at later model (73+) upper hoses too. Have your rig handy so you can see what might work.

makovai · 08-11-2006, 11:56 PM

sounds like they are different. I think I'll take the hoses with me and match to whatever the best i can. Thanks guys

jakeslim · 08-12-2006, 12:07 AM

I am pretty sure I told the parts guy to give me a 77 blazer one when I first bought my 69 and it fit perfectly(4x4).

makovai · 08-12-2006, 08:21 AM

Quote:

Originally Posted by jakeslim

I am pretty sure I told the parts guy to give me a 77 blazer one when I first bought my 69 and it fit perfectly(4x4).

kewl....thanks
I'll take my originals and compare them to that.

msgross · 08-12-2006, 08:29 AM

my napa guy said that there was an "extra cooling" setup??? My bottom hose had two numbers. My 4x4 took the longer 23" shaped like a big "L". I haven't installed them yet so I can't guarantee the fit.

makovai · 08-12-2006, 02:09 PM

well now i have a new issue. The upper hose for the '73 fit perfect but the lowerr hose is way off. And it was the correct one for that year.
Can one of you that have a stock setup shoot a pic for me?
Please!

08-11-2006, 04:02 PM	#1
makovai Senior Member Join Date: Feb 2006 Location: oregon city Posts: 335	2WD vs 4WD I'm putting a new radiator in my rig and i cant figure out if the radiator hoses (upper and lower) are the same from 2WD to 4WD. They have different part numbers at the auto store but they only have 2WD hoses. Anyone no the answer.....are they the same? __________________ If it aint broke..............fix it till it is. www.fast77.com 1972 - 330 hp crate, 11" lift with 39x18 mickeys. 3/4 ton, cross steer, 4 wheel disc brakes 1996 Z71 w/ 35's Last edited by makovai; 08-11-2006 at 04:03 PM.

08-11-2006, 04:14 PM	#2
see ten WTB this ad Join Date: Sep 2004 Location: Lafayette Georgia Posts: 5,074	Re: 2WD vs 4WD If a blazer is like a pickup, on 4x4s the engine is further away from the radiator. I think the bottom hose sometimes has to be trimmed on a 2wd so you might get away with it but who knows. I think I would find a store that had what I needed in stock or just have the correct parts ordered. Of course if you gotta get it going yesterday, do what you gotta do!

08-11-2006, 04:28 PM	#3
lazygaurd Senior Member Join Date: Oct 2002 Location: Saskatoon Saskatchewan Posts: 492	Re: 2WD vs 4WD The four wheel drive, regardless of truck or Blazer has the motor sitting closer to the fire wall than a 2 wheel drive. Stock upper rad hoses on a 4x4 are also 2 piece rubber hose with the metal sleeve above the fan.

08-11-2006, 06:54 PM	#4
bouncytruck SKINNY TIRES RULE! Join Date: Sep 2001 Location: Bothell, WA Posts: 11,038	Re: 2WD vs 4WD You won't find the 4wd hose at a parts store. The original was a metal tube (they get rusty) with 4-6" of rubber hose on each end. The NAPA guy found me a nice hose that worked great, but the part number is gone now so I can't tell you what it is. I think I had to cut a few inches off of it to get it to fit properly. Take a look at the 2wd, but I don't think it will be right. Take a look at later model (73+) upper hoses too. Have your rig handy so you can see what might work. __________________ bouncytruck 1972 K5 The Hauler 1994 K1500 Suburban The Daily2010 Kia Soul Wife's Ride2014 Fiat 500L

08-11-2006, 11:56 PM	#5
makovai Senior Member Join Date: Feb 2006 Location: oregon city Posts: 335	Re: 2WD vs 4WD sounds like they are different. I think I'll take the hoses with me and match to whatever the best i can. Thanks guys __________________ If it aint broke..............fix it till it is. www.fast77.com 1972 - 330 hp crate, 11" lift with 39x18 mickeys. 3/4 ton, cross steer, 4 wheel disc brakes 1996 Z71 w/ 35's

08-12-2006, 12:07 AM	#6
jakeslim Premium Level Member Join Date: Aug 2004 Location: Northern CA Posts: 829	Re: 2WD vs 4WD I am pretty sure I told the parts guy to give me a 77 blazer one when I first bought my 69 and it fit perfectly(4x4). __________________ 69 K5 CST stock- 350, 4speed 77 K5 - 383, auto, 6" lift, D60 front, 14b rear, 39" tsl's,

08-12-2006, 08:29 AM	#8
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: 2WD vs 4WD my napa guy said that there was an "extra cooling" setup??? My bottom hose had two numbers. My 4x4 took the longer 23" shaped like a big "L". I haven't installed them yet so I can't guarantee the fit. __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"

08-12-2006, 02:09 PM	#9
makovai Senior Member Join Date: Feb 2006 Location: oregon city Posts: 335	Re: 2WD vs 4WD well now i have a new issue. The upper hose for the '73 fit perfect but the lowerr hose is way off. And it was the correct one for that year. Can one of you that have a stock setup shoot a pic for me? Please! __________________ If it aint broke..............fix it till it is. www.fast77.com 1972 - 330 hp crate, 11" lift with 39x18 mickeys. 3/4 ton, cross steer, 4 wheel disc brakes 1996 Z71 w/ 35's



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