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#1 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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72 gmc duramax build
Hi thought I'd start a build thread on my current project. It's a 72 gmc that I've had kicking around in my back yard for a couple years now. I also had a bunch of duramax parts leftover from previous builds and figured I might as well build something with it all. Frame was an 05 3/4 ton reg cab with 6.0. Stripped it down and moved axle ahead about 6 inches. Also had to put a shortbed fuel tank to clear axle and added a fass fuel system I had
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#2 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Cab floor was rusty so I ordered one piece floor cab corners rockers and kick panels. Last weekend I cut the floor out. A few hours later cab floor was tacked in place and cab was set on frame.
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#3 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Sat the engine and trans in and then lowered cab onto frame to see how it fit. The floor fits the new chassis nicely. The bed floor will have to be raised about 4.5 inches to match cab. Engine is an lb7 with 68mm turbo profab manifolds and uppipes. Getting some bigger nozzles for it also.
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#4 |
Registered User
Join Date: Jan 2017
Location: Iowa
Posts: 246
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Re: 72 gmc duramax build
Very nice work so far! The one piece floor replacements are great. I sprayed my new floor top and bottom with raptor liner to protect the new metal. How did the cab mounts line up on the duramax frame? Great choice on the LB7 too, I love my deleted LML daily driver.
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#5 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Thanks. The front cab mount lines up with an existing hole in the frame. I just had to drill it bigger and pass a long bolt straight through. The rear mount interfere with fuel tank so I had to make new mounts I'll post pics when I get a chance. I wanted cab to sit lower but the rear is sitting on the fuel tank so without relocating fuel tank it's as low as possible.
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#6 |
Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
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Re: 72 gmc duramax build
You my friend are no slouch. Quite the undertaking! I'm in!
Brian
__________________
Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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#7 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Got the radiator support mounted and fit the radiator and intercooler. It fit tighter than I was expecting. I'll have to mount an electric fan in front of the the radiator stack.
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#8 |
SWB 4x4 Collector
![]() Join Date: Jun 2001
Location: Osage City, KS
Posts: 5,152
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Re: 72 gmc duramax build
Looking good.
__________________
TREVOR ![]() ![]() ![]() ![]() ![]() http://67-72chevytrucks.com/vboard/s...d.php?t=624819 ![]() ![]() :2004 Jeep Wrangler Rubicon (daily driver) WTB: 1968-70 Cruise Control Lever |
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#9 |
Registered User
![]() Join Date: Jan 2005
Location: Eastern Nebraska
Posts: 611
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Re: 72 gmc duramax build
This. Is. Awesomeness!
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'72 Chevy K-20 Crate 350, SM465, 4.10's |
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#10 |
Senior Member
![]() Join Date: Apr 2008
Location: Berne IN
Posts: 3,229
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Re: 72 gmc duramax build
Nice fabrication and welding skills
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#11 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Thanks. Not as much progress as planned this weekend but I did run fuel lines and trans lines. Going to hook up radiator and intercooler piping this week and hopefully tackle engine wiring. Should be running by the weekend
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#12 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Got a bit of work done to truck. Intercooler piping is done as well as coolant hoses. Mounted throttle pedal and built shifter linkage. Also wired up engine and fired it up. Just need to build a driveshaft and I'll be able to move it around
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#13 |
Registered User
Join Date: Dec 2018
Location: Jerome, ID
Posts: 77
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Re: 72 gmc duramax build
its nice to see someone tackle a dmax build every once in a while. cant wait to see it rip around.
__________________
1967 GMC C15 sb 6.0 lq4 pro daily. Named the “formula 10” |
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#14 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Yea it's a nice change of pace. Done so many ls swap they were kinda starting to get boring. Took a short vid of first start last night. Wiring is mess going to mount battery pcm and tcm and then clean up harness. Link to vid https://m.youtube.com/watch?v=inFJgk2cx4Q
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#15 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Put a rear seat from an 08 crew cab. Took alot of modifying and not sure how I feel about it. I think I'm going look for a factory bench seat.
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#16 |
Registered User
Join Date: Apr 2017
Location: Fort Kent Maine
Posts: 28
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Re: 72 gmc duramax build
Took some time away from truck to attend to other projects but I've started back on it. Put new door bottoms inside and out and started on bodywork. I also had to fill and bodywork a bunch of holes from previous mirrors
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#17 |
Registered User
Join Date: Mar 2007
Location: East Texas
Posts: 429
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Re: 72 gmc duramax build
This is a proper diesel build. One need not create an abomination of the Cummins kind.
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Tags |
72 gmc, duramax conversion, duramax swap, floor replacement |
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