Halfbreed - GMC Z71 + IH Extd Cab - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sparkydog · 03-12-2010, 05:04 PM

Hi all. Here is my obscure project in case some of you want to follow along. I hope you forgive me for what I did to the 96 GMC Extnd Cab Z71 2WD.

To start off with - here's the concept. I am transplanting the bodies off of a '67 IH Pickup and a '68 IH Travelall onto the rolling/running chassis of a '96 GMC truck. This is a picture of the dream.

Edit: And another shot as of 8/14/10 w/ 4 doors.

Edit: And the goal for wheels/lowering/nose job & fender mods.

sparkydog · 03-12-2010, 05:09 PM

The start of this dream goes back over a decade. I didn't get semi-serious until 2 years ago. And I didn't get real serious until a little over a year ago when I purchased the IH vehicles that would form the core of my build.

About 10 years ago I kept driving past a dead Travelette in the front yard of a house near Ruch, OR. (Edit - a "Travelette" is the model name of an IH Crewcab) Every time I drove past it something would tug at me. I think it was that it had sunk low enough into the weeds that it looked kind of cool like a cruiser. I kept saying "that sort of looks cool but not really - I wonder what it is about that look?"

But I never did anything with the thoughts and then one year the truck was gone and I stopped thinking about it.

A few years later a red one popped up in Sutherlin right along I5. This was a crummy - a logging rig. Seeing it revived my curiosity. I finally stopped and took some pictures. It was beat to chit. I went home and started playing around with crops of the pictures - trying to figure out what it was about the body that had made me think something that fugly had the potential to look OK.

I finally decided that IF:
a) the hood was shorter
b) the roof was lower
c) the bed was longer
d) the rear axle was further away
e) the crew compartment was a little shorter

That there was in fact a decent looking and very unique cruiser lurking inside the Travelette.

At that point it was fun playing paper dolls with photo crops. But once I had the basic look I was starting to get hooked. So, I said "hey what the hell - how expensive can a Travelette be?" So I hopped on the internet and starting trying to find one...

...that was in decent BODY condition..... but wasn't show quality.... and that was affordable.

Well ultimately I came to the conclusion that there wasn't such an animal. There are always a few Travelettes for sale but they all have had a hard life and their sheet metal is usually trashed. And then every so often there is a real cherry but it is usually available for top $$$$ and I AM A CHEAP BASTARD MOFO.

I pretty much gave up at that point.

Then I had a wild *** idea. If I was going to do a bunch of chopping on the cab anyway to get the unique cruiser look I wanted, then who said I had to start with a Travelette? I started wondering whether I could find a decent pickup AND a decent Travelall and then ... uh.... welllll um... just do some kind of magic whupass on the two cabs and make my own crew cab.

Well it didn't take much effort to find two trucks with decent sheet metal and for low $$$'s (pre economic meltdown $$$'s).

Sooooo..... I bought them!!!

sparkydog · 03-12-2010, 05:14 PM

That was about 1-2 years ago. The next phase was "catch a lot of crap from my wife and kids" phase. Also the economy tanked and life took it's twists and turns. And the two trucks sat and sat and sat.

Then I got frustrated and tried to sell them. Well nobody wanted them which was how I got them for a good deal in the first place. So they sat some more. My job has changed and now I will be commuting between Portland and San Diego all the time. When I am in San Diego I will have nothing to do but whack off in the evenings so instead I am going to start cutting up the trucks and see where this takes me.

First I towed the 68 Travelall down to SoCal and started demo.

sparkydog · 03-12-2010, 05:15 PM

Then cut the rear off the body.

sparkydog · 03-12-2010, 05:20 PM

During this phase I was leaving both sections of the cabs extra extra long.

Next I demo'd the '67 Pickup.

sparkydog · 03-12-2010, 05:26 PM

Fabbed up some dollies for the cab section and the future bed.

Had to go into shop reorg mode and get all the body carnage stowed away. Then started the early mockups of the cab sections.

sparkydog · 02-19-2012, 11:43 PM

Quote:

Originally Posted by sparkydog

The start of this dream goes back over a decade. I didn't get semi-serious until 2 years ago. And I didn't get real serious until a little over a year ago when I purchased the IH vehicles that would form the core of my build.

About 10 years ago I kept driving past a dead Travelette in the front yard of a house near Ruch, OR. (Edit - a "Travelette" is the model name of an IH Crewcab) Every time I drove past it something would tug at me. I think it was that it had sunk low enough into the weeds that it looked kind of cool like a cruiser. I kept saying "that sort of looks cool but not really - I wonder what it is about that look?"

But I never did anything with the thoughts and then one year the truck was gone and I stopped thinking about it.

A few years later a red one popped up in Sutherlin right along I5. This was a crummy - a logging rig. Seeing it revived my curiosity. I finally stopped and took some pictures. It was beat to chit. I went home and started playing around with crops of the pictures - trying to figure out what it was about the body that had made me think something that fugly had the potential to look OK.

I finally decided that IF:
a) the hood was shorter
b) the roof was lower
c) the bed was longer
d) the rear axle was further away
e) the crew compartment was a little shorter

That there was in fact a decent looking and very unique cruiser lurking inside the Travelette.

At that point it was fun playing paper dolls with photo crops. But once I had the basic look I was starting to get hooked. So, I said "hey what the hell - how expensive can a Travelette be?" So I hopped on the internet and starting trying to find one...

...that was in decent BODY condition..... but wasn't show quality.... and that was affordable.

Well ultimately I came to the conclusion that there wasn't such an animal. There are always a few Travelettes for sale but they all have had a hard life and their sheet metal is usually trashed. And then every so often there is a real cherry but it is usually available for top $$$$ and I AM A CHEAP BASTARD MOFO.

I pretty much gave up at that point.

Then I had a wild *** idea. If I was going to do a bunch of chopping on the cab anyway to get the unique cruiser look I wanted, then who said I had to start with a Travelette? I started wondering whether I could find a decent pickup AND a decent Travelall and then ... uh.... welllll um... just do some kind of magic whupass on the two cabs and make my own crew cab.

Well it didn't take much effort to find two trucks with decent sheet metal and for low $$$'s (pre economic meltdown $$$'s).

Sooooo..... I bought them!!!

Whoever wrote this was a Moron.

ERASER5 · 02-20-2012, 08:53 AM

Quote:

Originally Posted by sparkydog

Whoever wrote this was a Moron.

Possibly, but a VERY entertaining moron to say the least!

We are all glad you did it.

hgs_notes · 02-20-2012, 09:19 AM

Quote:

Originally Posted by sparkydog

Whoever wrote this was a Moron.

With a capital M. Well done.

samwise68 · 03-12-2010, 05:36 PM

Definitely gonna be watching this one! I love those awkward old Binders. A ballsy project, for sure man. I dig it.

-Sam.

67ChevyRedneck · 03-12-2010, 05:46 PM

Wow, kinda of sad, but it's too cool!

Is the Z71 the one in the pic? Or is that just a reference pic? I'm curious about it because I've NEVER seen an 88-98 truck with a DS ex cab door. GM didn't even make them available until the new body style came out, and even then it wasn't until 2000 as an option.

sparkydog · 03-12-2010, 05:54 PM

Quote:

Originally Posted by 67ChevyRedneck

Wow, kinda of sad, but it's too cool!

Is the Z71 the one in the pic? Or is that just a reference pic? I'm curious about it because I've NEVER seen an 88-98 truck with a DS ex cab door. GM didn't even make them available until the new body style came out, and even then it wasn't until 2000 as an option.

Reference pic. Artistic license. Did the photo mockups months b4 I ever had a viable donor lined up.

sparkydog · 03-12-2010, 06:06 PM

By the way - the ass end of the GMC Z71 cab will be available should anybody need it. I'll probably cut through the whole cab just ahead of the B pillars.

89muscletruck · 03-12-2010, 11:39 PM

two words WICKED AWESOME!

I have always had a soft spot for the old cornbinders, they are just so ugly that you have to like them...
Although it did make me sad to see two good trucks go under the knife, but your vision sounds like its worth it. You are definitly giving me confidence to go ahead with my dreams for an IH truck...

Restrorob · 03-13-2010, 09:18 AM

Quote:

Originally Posted by 89muscletruck

they are just so ugly that you have to like them..

Defiantly a build to watch for sure !!!

89muscletruck · 03-13-2010, 12:38 AM

Quote:

Originally Posted by 67ChevyRedneck

Wow, kinda of sad, but it's too cool!

Is the Z71 the one in the pic? Or is that just a reference pic? I'm curious about it because I've NEVER seen an 88-98 truck with a DS ex cab door. GM didn't even make them available until the new body style came out, and even then it wasn't until 2000 as an option.

I'm not sure but it looks like the picture has been mirrored.

sparkydog · 03-13-2010, 11:29 AM

Quote:

Originally Posted by 89muscletruck

I'm not sure but it looks like the picture has been mirrored.

Yes probably. I think I clipped it off a Craigslist photo and then mirrored it to use in my photo-chopping.

These next pictures are just showing how I played and played with photo crops trying to decide what wheelbase and body proportions to settle in on. This went on for quite awhile. I was doing rough scaling of the pictures and trying to find good side views off the internet. As you can see in one of the pics I was considering a Dodge cab for awhile.

sparkydog · 03-13-2010, 12:07 PM

Eventually I settled in on the GM/Chevy extended cab proportions and also firmed up what chassis I was going to need as a donor vehicle. By then I had bought the two IH trucks and started to realize that before I cut them up I'd better have a more accurate idea of what dimensions worked. I realized the photo chop stuff could be out of scale enough that it would really mess me up.

So I moved into using Solidworks instead of Powerpoint and started making accurate measurements and scaling better. If you haven't guessed already I am an Engineer so I like having numbers to go with my ideas. This is where and how I finalized my plans and decided how big I wanted the rear door openings and the length of the bed. Here's a pdf file that shows an example of the "engineering drawing" I am using as a guide. (Warning - these dimensions are not my final ones so don't go cutting up another pair of trucks off these!)

67ChevyRedneck · 03-13-2010, 12:21 PM

Quote:

Originally Posted by 89muscletruck

I'm not sure but it looks like the picture has been mirrored.

Well, that explains it. The exhuast is supposed to be on the PS and the steering wheel looks to be on the wrong side in the pic as well, mystery solved

Even using the chevy ext cab frame, with the "smaller" cab of the IH, you should still have a good bit of back seat room and a decent sized rear door.

sparkydog · 03-13-2010, 12:37 PM

Either that.... or it is an extremely rare British version!

sparkydog · 03-13-2010, 01:34 PM

Quote:

Originally Posted by 67ChevyRedneck

Even using the chevy ext cab frame, with the "smaller" cab of the IH, you should still have a good bit of back seat room and a decent sized rear door.

Funny thing - my decisions on where to finish cut the cab were all based on visual/exterior look. Just the other day I measured the interior dims of both the stock GMC cab and my IH extnd cab. The rear cab wall to firewall distance is within 1" of each other. And even though the two trucks are 30 years apart in time and worlds away in designs - the GMC interior cab width at the dashboard and the IH are within 1/2".

sparkydog · 03-20-2010, 11:53 PM

Friday afternoon I chopped on the roof tin and ended up not getting it to feather like I thought it would. I don't think I'm in trouble but the next cut(s) will make me a hero or a zero. Decided to stop and study for awhile and shifted my attention toward the GMC cab... heh heh

sparkydog · 03-20-2010, 11:56 PM

Over the last week I went from thinking I was never going to use any of the GMC body metal on my project, to thinking it wouldn't hurt to keep the floor pan and firewall, to wanting to use the firewall, to now I'm getting more interested in using the floorpan. So I decided that I would proceed with cutting up the GMC as if I will use the floorpan and that way I have all my options open.

So for the third time I proceeded to destroy a perfectly fine looking bunch of sheet metal.

First I cut out the roof inner liner. I may end up grafting this into the IH in order to provide a nice attachment point for a dome light and an overhead console.....someday.

Then I took out the windshield and frame. It wasn't exactly pretty but I got it done and learned more than I wanted to know about the inner structural supports of the cab of the GMC.

sparkydog · 03-20-2010, 11:58 PM

Saturday morning off came the back of the cab.

Note - no real GMC trucks were harmed in the filming of this movie...

sparkydog · 03-21-2010, 12:01 AM

Next I fabbed up a quick little frame so I could support the brake MC and the fender skirts when I take the floorpan/firewall off. I know it looks stupid but it works.

The floorpan is up off the shock mounts and is ready to come out. All I'm waiting on is freon evac on Monday afternoon and I can pull the HVAC unit out.

03-12-2010, 05:04 PM	#1
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Halfbreed - GMC Z71 + IH Extd Cab Hi all. Here is my obscure project in case some of you want to follow along. I hope you forgive me for what I did to the 96 GMC Extnd Cab Z71 2WD. To start off with - here's the concept. I am transplanting the bodies off of a '67 IH Pickup and a '68 IH Travelall onto the rolling/running chassis of a '96 GMC truck. This is a picture of the dream. Edit: And another shot as of 8/14/10 w/ 4 doors. Edit: And the goal for wheels/lowering/nose job & fender mods. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 12-02-2010 at 11:44 PM.

03-12-2010, 05:09 PM	#2
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab The start of this dream goes back over a decade. I didn't get semi-serious until 2 years ago. And I didn't get real serious until a little over a year ago when I purchased the IH vehicles that would form the core of my build. About 10 years ago I kept driving past a dead Travelette in the front yard of a house near Ruch, OR. (Edit - a "Travelette" is the model name of an IH Crewcab) Every time I drove past it something would tug at me. I think it was that it had sunk low enough into the weeds that it looked kind of cool like a cruiser. I kept saying "that sort of looks cool but not really - I wonder what it is about that look?" But I never did anything with the thoughts and then one year the truck was gone and I stopped thinking about it. A few years later a red one popped up in Sutherlin right along I5. This was a crummy - a logging rig. Seeing it revived my curiosity. I finally stopped and took some pictures. It was beat to chit. I went home and started playing around with crops of the pictures - trying to figure out what it was about the body that had made me think something that fugly had the potential to look OK. I finally decided that IF: a) the hood was shorter b) the roof was lower c) the bed was longer d) the rear axle was further away e) the crew compartment was a little shorter That there was in fact a decent looking and very unique cruiser lurking inside the Travelette. At that point it was fun playing paper dolls with photo crops. But once I had the basic look I was starting to get hooked. So, I said "hey what the hell - how expensive can a Travelette be?" So I hopped on the internet and starting trying to find one... ...that was in decent BODY condition..... but wasn't show quality.... and that was affordable. Well ultimately I came to the conclusion that there wasn't such an animal. There are always a few Travelettes for sale but they all have had a hard life and their sheet metal is usually trashed. And then every so often there is a real cherry but it is usually available for top $$$$ and I AM A CHEAP BASTARD MOFO. I pretty much gave up at that point. Then I had a wild *** idea. If I was going to do a bunch of chopping on the cab anyway to get the unique cruiser look I wanted, then who said I had to start with a Travelette? I started wondering whether I could find a decent pickup AND a decent Travelall and then ... uh.... welllll um... just do some kind of magic whupass on the two cabs and make my own crew cab. Well it didn't take much effort to find two trucks with decent sheet metal and for low $$$'s (pre economic meltdown $$$'s). Sooooo..... I bought them!!! Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 06-27-2010 at 04:32 PM.

03-12-2010, 05:14 PM	#3
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab That was about 1-2 years ago. The next phase was "catch a lot of crap from my wife and kids" phase. Also the economy tanked and life took it's twists and turns. And the two trucks sat and sat and sat. Then I got frustrated and tried to sell them. Well nobody wanted them which was how I got them for a good deal in the first place. So they sat some more. My job has changed and now I will be commuting between Portland and San Diego all the time. When I am in San Diego I will have nothing to do but whack off in the evenings so instead I am going to start cutting up the trucks and see where this takes me. First I towed the 68 Travelall down to SoCal and started demo. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff

03-12-2010, 05:15 PM	#4
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Then cut the rear off the body. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 05-15-2010 at 11:37 PM.

03-12-2010, 05:20 PM	#5
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab During this phase I was leaving both sections of the cabs extra extra long. Next I demo'd the '67 Pickup. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff

03-12-2010, 05:26 PM	#6
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Fabbed up some dollies for the cab section and the future bed. Had to go into shop reorg mode and get all the body carnage stowed away. Then started the early mockups of the cab sections. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 03-12-2010 at 05:30 PM.

03-12-2010, 05:46 PM	#11
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Halfbreed - GMC Z71 + IH Extd Cab Wow, kinda of sad, but it's too cool! Is the Z71 the one in the pic? Or is that just a reference pic? I'm curious about it because I've NEVER seen an 88-98 truck with a DS ex cab door. GM didn't even make them available until the new body style came out, and even then it wasn't until 2000 as an option. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

03-12-2010, 06:06 PM	#13
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab By the way - the ass end of the GMC Z71 cab will be available should anybody need it. I'll probably cut through the whole cab just ahead of the B pillars. __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff

03-12-2010, 11:39 PM	#14
89muscletruck Registered User Join Date: Apr 2009 Location: Edmonton, Alberta Posts: 279	Re: Halfbreed - GMC Z71 + IH Extd Cab two words WICKED AWESOME! I have always had a soft spot for the old cornbinders, they are just so ugly that you have to like them... Although it did make me sad to see two good trucks go under the knife, but your vision sounds like its worth it. You are definitly giving me confidence to go ahead with my dreams for an IH truck...

03-13-2010, 12:07 PM	#18
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Eventually I settled in on the GM/Chevy extended cab proportions and also firmed up what chassis I was going to need as a donor vehicle. By then I had bought the two IH trucks and started to realize that before I cut them up I'd better have a more accurate idea of what dimensions worked. I realized the photo chop stuff could be out of scale enough that it would really mess me up. So I moved into using Solidworks instead of Powerpoint and started making accurate measurements and scaling better. If you haven't guessed already I am an Engineer so I like having numbers to go with my ideas. This is where and how I finalized my plans and decided how big I wanted the rear door openings and the length of the bed. Here's a pdf file that shows an example of the "engineering drawing" I am using as a guide. (Warning - these dimensions are not my final ones so don't go cutting up another pair of trucks off these!) Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff

03-13-2010, 12:37 PM	#20
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Either that.... or it is an extremely rare British version! __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff

03-20-2010, 11:53 PM	#22
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Friday afternoon I chopped on the roof tin and ended up not getting it to feather like I thought it would. I don't think I'm in trouble but the next cut(s) will make me a hero or a zero. Decided to stop and study for awhile and shifted my attention toward the GMC cab... heh heh Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 03-21-2010 at 01:10 AM.

03-20-2010, 11:56 PM	#23
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Warning - the following images may be disturbing to gm truck fans Over the last week I went from thinking I was never going to use any of the GMC body metal on my project, to thinking it wouldn't hurt to keep the floor pan and firewall, to wanting to use the firewall, to now I'm getting more interested in using the floorpan. So I decided that I would proceed with cutting up the GMC as if I will use the floorpan and that way I have all my options open. So for the third time I proceeded to destroy a perfectly fine looking bunch of sheet metal. First I cut out the roof inner liner. I may end up grafting this into the IH in order to provide a nice attachment point for a dome light and an overhead console.....someday. Then I took out the windshield and frame. It wasn't exactly pretty but I got it done and learned more than I wanted to know about the inner structural supports of the cab of the GMC. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 03-21-2010 at 12:21 AM.

03-20-2010, 11:58 PM	#24
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Saturday morning off came the back of the cab. Note - no real GMC trucks were harmed in the filming of this movie... Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff

03-21-2010, 12:01 AM	#25
sparkydog Registered User Join Date: Feb 2010 Location: Fallbrook, CA Posts: 910	Re: Halfbreed - GMC Z71 + IH Extd Cab Next I fabbed up a quick little frame so I could support the brake MC and the fender skirts when I take the floorpan/firewall off. I know it looks stupid but it works. The floorpan is up off the shock mounts and is ready to come out. All I'm waiting on is freon evac on Monday afternoon and I can pull the HVAC unit out. Attached Images __________________ Balls and a Sawzall Project Halfbreed Porsche 944 L67V6 CARB Legal & Other Stuff Last edited by sparkydog; 05-19-2010 at 04:20 PM.



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