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#1 |
Registered User
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Location: memphis
Posts: 2,537
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Re: Halfbreed - GMC Z71 + IH Extd Cab
ok..thanks..
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1981 C-10 (Pop's) 1978 Camaro 2006 Lacrosse |
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#2 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
I had come up with several strategies for doing the Nose Job but finally settled on this:
1) remove the hood, fenders, front grille and the GM radiator assy 2) shorten the hood 3) float the hood in air on the truck and then position the grille wherever the hood ends up. 4) mount/adapt the GM gear as necessary to fit inside the IH metal 5) extensive mods to the IH fenders to blend with wherever the hood and grille end up. I chose this way because I knew the fenders were going to get the most changes anyway so I might as well make the hood and grille look like I want. So to put the plan in motion I.... |
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#3 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Marked up the hood for the cutting, drilled out a bunch of spot welds and got the braces out of the way.
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#4 |
6>8 Plugless........
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Location: Prairie City, Ia
Posts: 17,143
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Boy you work fast! Great job on the hood!
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#5 |
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Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
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#6 |
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Location: Hillsboro Oregon
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Nice! How much did you take out?
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#7 |
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Location: CoNrOe Tx
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Re: Halfbreed - GMC Z71 + IH Extd Cab
i just went thru almost ur entire thread...awesome. i wish i had the time and energy u do...and im only 25!!!lol this is an awesome truck. never seen one like it. im building my 68 and working on three yrs and i dont even have the bed done...i feel like such a lazy ass....lol btw, subscribed!!!
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68 C10 Stepper #1- GONE 68 C10 Stepper #2 1977 Chevy Cheyenne...gone...was my first Chevy 04 Tahoe Z71, 04 Silverado 2500HD, 04 Sierra 2500HD 99 Sierra Stepside, 17 Denali HD, 84 K10 My 1st build-- http://67-72chevytrucks.com/vboard/s...d.php?t=379333 My 2nd build-- http://67-72chevytrucks.com/vboard/s...d.php?t=700310 |
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#8 |
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Join Date: Jan 2011
Location: Gilberts IL.
Posts: 2,488
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Re: Halfbreed - GMC Z71 + IH Extd Cab
This is defiantly thinking out of the box I am subscribing.
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#9 |
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Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Worst case here's what I have to play with - about 3" before the radiator would hit the fan. But there are plenty of things to try before I get to the point of needing to worry about this.
So first up I removed the GM grille subframe and the various brackets, harnesses and other junk in the way. I was pleasantly surprised to realize that I might not have to disconnect the radiator. For now I am leaving it on. I needed a way to support the IH grille while I study things. I had these brackets left over from my towing days and they came in handy for providing a ledge to work from. |
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#10 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
The next thing up was to design and fabricate my new, patented "hood floating in air" support system.
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#11 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Now that I have my basic tools setup for mockup I have to decide what I am going to do. One choice I have is to start hacking up the IH grille so that I can try to tuck all of the GM stuff inside. If I go this route I will have to enlarge the opening in the IH metal to about what you see here. This way I may have enough room to fit the GM AC heat exchanger and the GM radiator without much change in their fore/aft location.
The other choice is to try to continue to have both the IH grille metal and the GM radiator support as a sandwich. This is the way I have run for the past year but now I would have to move the GM assy aft and get into shorter hoses and altered airflow issues. As of right now I am leaning toward chopping up the IH metal to clear the GM radiator and AC heat exchanger. |
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#12 | |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
2.5"
Quote:
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#13 |
State of Confusion!
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Location: Gulfport, MS USA
Posts: 47,471
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Great work on the hood. Can't wait to see how you get it all to merge together. I truly love your approach to solving all these issues with this build.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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#14 |
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Join Date: Jul 2011
Location: Phenix City, AL
Posts: 993
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Re: Halfbreed - GMC Z71 + IH Extd Cab
All I can say is wow! I have just spent 4 hrs reading through the entire thread. I could not even think about taking on a build this creative. Unique builds like this is what fuels the imaginations of others to venture outside the box. I knew nothing of your build until I seen it referenced by others on their threads. Keep up the hard work, can't wait to see what you come up with the fenders. Subscribed!
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71 Ol' Blue: http://67-72chevytrucks.com/vboard/s...d.php?t=474752 Carving the Jake-olantern: http://67-72chevytrucks.com/vboard/s...d.php?t=679537 |
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#15 | ||
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Join Date: Feb 2010
Location: Fallbrook, CA
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Quote:
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#16 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
My GM truck is equipped with trans cooling lines. They run into two coolers one inside the end of the radiator and the other piggybacked in front of the AC radiator.
It would help if I could take out the unit that hangs in front and just use the portion that is inside the cap of the radiator. I doubt if I will ever use the truck to tow anything. Does anyone know if I will be OK doing this? |
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#17 |
Slots go on anything!
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
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Re: Halfbreed - GMC Z71 + IH Extd Cab
You can take the auxillary cooler out, but it really helps keep trans temps down. Heat is the enemy of any auto transmission, so if it isn't in the way, I would keep it.
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1974 Jimmy- 5.3/4L80e/NP241 |
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#18 |
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Join Date: Jun 2006
Location: Indiana
Posts: 4,859
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Re: Halfbreed - GMC Z71 + IH Extd Cab
If you remove the fron aux trans cooler, you could add a aux cooler on the frame closer to the trans.
http://67-72chevytrucks.com/vboard/s...=195643&page=5 Page 5, Post 120
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#19 |
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Join Date: Aug 2011
Location: Dallas TX
Posts: 563
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Great build!!
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#20 |
6>8 Plugless........
![]() Join Date: Sep 2007
Location: Prairie City, Ia
Posts: 17,143
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Re: Halfbreed - GMC Z71 + IH Extd Cab
I'd do like Eraser5 mentioned. I'd ditch both of those coolers up front and put one under the bed that has it's own electric fan blowing air through it.
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Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project Tired of spark plugs? Check this out. |
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#21 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
Posts: 910
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Wow all this stuff I am posting took about a day and a half and doesn't look like much. But... good things happened! And I must have gone through 4 or 5 cut disks to get this done.
After an appropriate amount of staring and studying and tradeoffs of this and that - I figured out what I was going to do and proceeded with the execution. I decided that the base of the GM grille assy was going to stay and form the core of my nose job mods. I had to cut it free from the rest of the frame and then do a bunch of stuff. Shaving off unwanted crap, repairing torn spot welds, moving the mount hole locations to get about 3/8" of radiator relo just with the holes. Then I sectioned and slid the portion of the base that holds the radiator another 7/8" so all told I slid the radiator about 1.25" rearward on the vehicle. |
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#22 |
Registered User
Join Date: Feb 2010
Location: Fallbrook, CA
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Re: Halfbreed - GMC Z71 + IH Extd Cab
I also came to realize that there were some issues going on within my IH grille structure and that I needed to open it up. This is what started tipping my thoughts toward spending so much time on the GM base - getting it ready to take the place of a very complex but rigid tube section within the IH grille because it had to come off and get the dirt and rust and s*** out.
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#23 |
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Join Date: Feb 2010
Location: Fallbrook, CA
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Every vehicle has its own particular spots for rust and problems and the IH trucks certainly have their short list. The bottom section of the grille is in the top 5. I am glad I shaved this off and got the cancer more or less out. The next few days should see me getting the new hybrid grille assy mocked up and ready to mate up with the hood.
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#24 | |
GEARHEAD
Join Date: Aug 2003
Location: MN
Posts: 6,126
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Re: Halfbreed - GMC Z71 + IH Extd Cab
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#25 |
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Join Date: Jul 2010
Location: Sweet Home Alabama
Posts: 58
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Re: Halfbreed - GMC Z71 + IH Extd Cab
Man O Man, just found this thread this morning and read it all. Nice work. Have you thought of going with an electric fan? You can get a GM one from pull-a-part for like $10. They use them in everything and then you could get much closer to the engine.
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