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10-01-2014, 01:28 AM
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#151 |
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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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10-01-2014, 01:29 AM
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#152 |
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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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10-01-2014, 01:30 AM
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#153 |
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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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10-01-2014, 01:31 AM
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#154 |
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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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10-01-2014, 01:33 AM
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#155 |
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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
Under the hood assembled
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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10-01-2014, 01:34 AM
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#156 |
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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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10-01-2014, 01:36 AM
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#157 |
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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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10-01-2014, 01:36 AM
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#158 |
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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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10-01-2014, 01:37 AM
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#159 |
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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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10-01-2014, 01:41 AM
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#160 |
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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
Still have lots of detail work to do.
Wet sand, buff, and install all the trim, lights and accessories. But I do have to say it runs and drives great
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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10-01-2014, 08:21 AM
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#161 |
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Registered User
Join Date: Mar 2013
Location: Grand Island, Ne.
Posts: 1,110
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
W O W ! ! ! No words, Just Awesome!
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J. Vess, 6'6", Gearhead, Welder, Fabricator, Nutcase 1955 Chevy Stepside "Dudley" My daily http://www.67-72chevytrucks.com/vboa...d.php?t=760288 1972 Chevy C10, Project "Chevro~Layed out" Nether Storm Build Thread http://67-72chevytrucks.com/vboard/s...23#post6007523 |
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10-01-2014, 08:25 AM
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#162 |
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Senior Member
 
Join Date: Jul 2009
Location: Tomball, Texas
Posts: 1,592
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Boy, you weren't kidding about having a lot to update us on. That's a LOT of progress and its looking great! Must feel fantastic knowing that the big jobs are pretty much behind you now. Thanks for the paint info.
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Rick 78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel 71 GMC C25 350/TH400 - Project Angie 59 Chevy SWB Stepside (next in line? Not sure now  )2001 GMC Sierra K2500 |
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10-01-2014, 10:21 AM
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#163 |
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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
All of the prep work I did throughout the build is paying off now. I lost count of howmany time I put it together and took it apart before before I painted anything. By the time I got rolling on finish work everything was ready to just just bolt together.
I still have a few finishing touches to go. Wet sand, buff, install glass, power window and locks, stero system, pinstripe between the blue and silver, bed liner, new wheels and tires, add the chrome and detail parts then build some type of nerfbar step. Wow, now that I start listing it all out I'm realizing I still have a lot of work to do.....
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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10-01-2014, 10:49 AM
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#164 |
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Project: years too late.
Join Date: Dec 2007
Location: Almonte,ON,Canada
Posts: 550
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
wow! please make videos of it running when you can!
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1971 C10 Stepper LSX 5.3/4L60E 3.73 12bolt posi. Father Son Project. In Memory of Bruce C. Shorten. Rest easy Dad. Ill take it fryom here. |
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10-01-2014, 10:55 AM
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#165 |
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Ephesians 2:8
Join Date: Mar 2008
Location: Delavan, IL
Posts: 677
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Great work! Looks really good. Love the integration work you did with the gages and switches. Cheers!
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72 Suburban making it mine My 79 C10 story 79 C10 LS swap 94 LS swapped Daily Driver Tahoe Limited Instagram - @piersonclassics 83 K20 Farm Truck Build |
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10-01-2014, 11:05 AM
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#166 |
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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 tried to upload a couple videos but can't get them to load. Anyone know how or why?
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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10-01-2014, 12:28 PM
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#167 |
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I'm just glad to be here!
Join Date: Jan 2008
Location: Longview, TX
Posts: 4,788
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
WOW this is looking great. Your attension to detail is top notch.
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Karl  1965 Chevy Stepside(Grandpa's Old Blue) and (July 2015 Shop Build!)(2020, the Saga Continues) http://67-72chevytrucks.com/vboard/s...d.php?t=372424 The LST Challenge: http://67-72chevytrucks.com/vboard/s...=1#post7812257 Korbin's 1st Square: "Sunburn" http://67-72chevytrucks.com/vboard/s...d.php?t=418618 1985 GMC Sierra: "White Trash", Korbin's 2nd now... http://67-72chevytrucks.com/vboard/s...d.php?t=632305 Henry - 1984 Chevrolet, Owen's 1st Square |
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10-01-2014, 12:38 PM
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#168 |
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Registered User
Join Date: Apr 2010
Location: La Grande, OR
Posts: 11
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
This thing is sick! Absolutely love what you have done with the interior.
I don't know how to post videos on here, but try posting them to YouTube and then post a link on here. Keep it up, everything is looking fregin sweet!
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71' Chevy C10 Short Stepper "The Blue Beast" 79' Chevy LUV Stepside "Mini Me" 68' Chevy C50 "Project Chummins" 71' Chevy Longhorn "The Texas Longhorn" 04' Mitsubishi Lancer (dd) "The B*TCHY!" |
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10-01-2014, 12:59 PM
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#169 |
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Registered User
Join Date: Jan 2014
Location: Sacramento,California
Posts: 696
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
please tell me this thing will see a little offroad?? I would love to see this truck slinging a nice muddy rooster tail
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Built not bought! My dad always tried to convince me HEI was pointless! Welding is a lot like sex, you don't have to be great with the rod as long as you thoroughly prep the surface and your good at grinding  My build : 68 C10 Short Bed Conversion |
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10-01-2014, 01:03 PM
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#170 |
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Registered User
Join Date: Jan 2014
Location: Sacramento,California
Posts: 696
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
The nice thing about this conversion is that you can do whatever the hell you want to soup up that duramax, and the local epa can't say nada. Which means you will be pumping out some serious hp and torque, combine that with a big wheel and tire combo, and you can get some serious gas mileage out of it too. I have a friend with a 2005 dodge diesel and he has it chipped and a built trans, he runs 37's and turns about 15-1800 rpm at 80mph in OD. gets about 25-27mpg on the open road, which is pretty nice for a giant 4x4. This thing looks awesome can't wait to see it come to fruition.
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Built not bought! My dad always tried to convince me HEI was pointless! Welding is a lot like sex, you don't have to be great with the rod as long as you thoroughly prep the surface and your good at grinding My build : 68 C10 Short Bed Conversion |
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10-14-2014, 02:15 AM
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#171 |
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Registered User
Join Date: Sep 2014
Location: el paso, texas
Posts: 5
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Man this thing came out awsome. What is your hub to hub wheel base though? I am concerned to reach my wheel base target I will have to cut down so much the saddle area of the frame wont be long enoguh to mount my trucks body level. Also I saw diy4x mentiined for your body mounts but couldnt find them on their website. I will have to mod the front core support to keep my 93 yukon body right, however I have been entertaining the idea to cut the back off my 2006 cab donor, and then merge it to the back of my yukon. Assuming this is even going to be a possibility. Im still in planning phase here. But your post here has at least got me looking in the right direction.
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10-14-2014, 10:25 AM
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#172 | |
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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:
My wheel base is 127" if i remember correctly. As far as having to modify your radiator support I'm sure you will have to make some kind of combination of the 2006 & 1993 to make it all fit. I would first look at the 2006 and go from there since it already has frame mounting points and the fan shroud and radiatator all fit it. Then you only have to adapt mounting points for cosmetic stuff i.e. fenders, headlights, and hood latch
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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10-14-2014, 02:26 PM
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#173 |
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Registered User
Join Date: Sep 2014
Location: el paso, texas
Posts: 5
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
Ok thanks, It must have been 1tonwannab who got them from diy4x. Yea my wheel base target is 112. So ill have to move the axle n cut the end, and cut at the factory welds and re weld after removing some frame from the saddle. Cutting and modding the frame is one thing. But if I was to use the 06 cab it would be a hell of a task to cut n weld that to the back of my yukon. Your post will really help me along the way tho. Thank you so much for sharing this project with all of us!!
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10-14-2014, 07:29 PM
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#174 |
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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
Have you considered searching for a frame from a Tahoe/Yukon 116" wheelbase or silverado/sierra reg cab short bed 119" wheelbase.
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1970 Chevrolet + 2003 GMC Duramax 4x4 = Awesome |
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10-14-2014, 08:03 PM
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#175 |
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Registered User
Join Date: Sep 2014
Location: el paso, texas
Posts: 5
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Re: 1970 C20 long bed Duramax, Allison, on a 2003 4x4 chassis
I was looking for the 2500 series, wanted to go with th thicker frame rails. I think it can be done. Might be a little more tuff than yours though. I only need about 40 inches worth of saddle area, so if I use your method plus chop the saddle about 12 inches I think it will work. I'm stationed in texas with my truck here and my donor is back home in GA. Next month I'll be back home and can start work. I think I'm gona have to start by stripping both trucks to the frame and working the measurements and difference then. Just trying to get my head wrapped around it for now. Another consideration was to cut at the factory weld, and use the front frame, but instead swapping the rear portion of the frame for a 1500 regarding cab short bed. That should get me to the 119 and the remaining 7 inches is cake, but I would keep the 2500 axle and driveline, yet I would not be able to have the thicker 2500 rear frame rails that way. So in return I would box the rails for the additional strength. I would have to purchase a second donor for this though. But it is a thought I have entertained.
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