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#76 | |
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Join Date: Feb 2012
Location: West Plains Missouri
Posts: 209
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Quote:
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#77 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Made front bumper brackets
Fit front chin spoiler Started deconstruction to finish firewall
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#78 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#79 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#80 |
Registered User
Join Date: Mar 2006
Location: Pittsburgh
Posts: 1,694
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Looking good, I like it. So are you gonna do something under the cab to camouflage or hide the frame? Maybe some step/nurf bars.
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Nate 1967 short fleet Project Blue Goose 'If it don't bounce back... heeheehee you go hungry!" Blues Brothers |
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#81 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Yes. I've already made brackets on the frame to mount wheel to wheel nerf bars on it.
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#82 |
Registered User
Join Date: Nov 2009
Location: Edmonton Alberta
Posts: 286
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Yes. Yes. Yes.
Did you just move the factory cab mounts to match the new cab, or did you build new mounts from scratch and weld them in place?
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1989 3+3 2wd Dually. 454 BB. Factory loaded for the day, including Alcoa rims. |
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#83 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#84 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
I also modified the bed floor support ribs to lower the bed as much as possible and get it on the correct angle with the 2003 radiator support height so it would be easier to attach the 1970 fenders with 2003 radiator support
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#85 |
Registered User
Join Date: Oct 2013
Location: Saluda, SC
Posts: 1,276
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
How much alike are the 70s frames compare to the 73-87 frame? I ask because I have a 87 4x4 single cab long bed and a 2001 ecsb donor. I am currently using the donor for an ls swap but I'd much prefer to drop the 87 body on the 01 frame. Thoughts? I havn't found anyone whos really done that and documented it.
Your truck is looking awesome by the way!! |
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#86 |
Still Learning
Join Date: Jul 2009
Location: Central Oklahoma
Posts: 10,108
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Incredible build you have going!
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#87 | |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Quote:
Imagination, and sheer determination goes a long way.
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#88 | |
Registered User
Join Date: Oct 2013
Location: Saluda, SC
Posts: 1,276
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Quote:
Although, I did get all the LS drive train removed from the 01 donor and am mocking up the 01 fuel tank in the 87 now. |
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#89 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#90 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Hope to have cab interior, and jams painted this weekend so I can start assembly next week
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#91 |
Registered User
Join Date: Jun 2014
Location: Adrian Minnesota
Posts: 2
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
I just joined this forum this morning. I am in the process of swapping my 71 chevy Custom Camper onto a 2004 Duramax chassis. I have some questions about what you have done to shorten your frame. I would like to pick your brain on this subject. How would I do that??
Thanks, 71duramax |
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#92 | |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Quote:
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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#93 |
Registered User
Join Date: Jun 2014
Location: Adrian Minnesota
Posts: 2
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
I am starting out with a 2004 regular cab long box frame. I see you moved the rear axle forward instead of making the frame shorter. In your opinion, do you think this is the easier, better way to go rather than making the frame shorter? Do you have your truck up and running yet?
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#94 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
With a reg cab I believe moving the axle forward about 7.5" is the easiest to do. You will have to also move fuel tank, the two rear crossmembers, and spare tire mount/crossmember and shock mounts. The other option is to seperate the front frame section at the factory joint under the cab floor. In this option you will have to move the trans crossmembers and I would expect that you would still have to move the rear axle to get the correct wheel base.
Because all my frame changes are behind the trans I did not have to modify fuel lines, abs brake lines, wire harness. If you would like more details send me a message and I'll send back my phone number
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#95 |
Senior Member
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Location: Reno, Nv.
Posts: 1,434
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Did you get the truck done. I didn't see it.
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#96 |
Registered User
Join Date: Mar 2014
Location: East haven
Posts: 91
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Sweet build
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#97 |
Registered User
Join Date: Mar 2007
Location: Displaced Floridian/Bremerton, Wa
Posts: 281
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
I'd like to see this updated as well...
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'06 2500 HD 4x4. manual transfer case, crank windows. '88 V10 Suburban 4x4,"The Pig Rig" L05, 700r4, NP208, 4x4 beater camper fun truck project. My trucks don't leak oil, they mark their territory. |
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#98 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
We'll I didn't make my deadline to get to hot August nights this year. However I have made lots of progress.
Painted dash, cab interior, jam's, firewall, core support and cut in doors, hood and fenders. Installed *Cab onto chassis *Cab wire harness with body control module, fuse blocks and harness junction blocks *Air bag wire harness *Interior controls and switches w*Stained wood gauge cluster bezel and installed gauges and new gauge face w needles. *Steering column *engine wire harness *Banks tuning module W/ IQ display / controller *exhaust gas temp probe *master cylinder and power booster *Vintage air heat and AC unit *carpet *core support *Radiator *Innercooler *Trans cooler What's next @block sand body exterior @fit doors, fenders, and hood @install @inner fender wells @under hood fuse block @batteries @ECM & TCM @Banks Ram air box @Surge tank And........ Misc
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#99 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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#100 |
Registered User
Join Date: Aug 2011
Location: Kalama Wa
Posts: 146
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