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02-06-2010, 10:38 PM
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#76 |
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Registered User
Join Date: Oct 2009
Location: Tulsa, OK
Posts: 30
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Re: 1972 GMC Shorty Conversion
I've been wanting to see this done considering how difficult it is to get a reasonably priced 67-72 short-wide. Thanks for the valuable info! Keep up the excellent work.
Subscribed!
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SquareShane33 1987 SWB (Future Project) 1958 BBW Short Bed Fleetside 1978 SWB (RIP) |
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02-06-2010, 11:17 PM
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#77 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Got a late start today, but made some progress. I cut 4" holes in the center crossmember for the exhaust pipes. Got everything deburred and ready to weld. I drilled all the holes in the frame in order to secure the trailing arm crossmembers. Now I just need a boat load of 7/16" grade 8 bolts to finish it up. I also managed to get the donor 12 bolt cleaned up and torched off the spring perches and shock mounts.
Some pics... |
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02-06-2010, 11:20 PM
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#78 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
A few more....
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02-07-2010, 08:34 AM
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#79 |
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Registered User
Join Date: Jun 2007
Location: Saskatoon, Saskatchewan,:
Posts: 2,901
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Re: 1972 GMC Shorty Conversion
Truck is looking amazing, great work and a god find on that rear frame. That box looks superb!!!!!
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James 1968 GMC "HAVOC" 1986 GMC "Frank" J.J.R.H. Design & Consulting My 68`Rebuild "HAVOC": http://67-72chevytrucks.com/vboard/s...d.php?t=316300 A 58' chev build thread: http://www.67-72chevytrucks.com/vboa...d.php?t=311238 1969 Camaro Pro Touring http://67-72chevytrucks.com/vboard/s...61#post3513361 Swiss Cheese: http://67-72chevytrucks.com/vboard/s...d.php?t=384390 Adjustable Trailing Arm How-To: http://67-72chevytrucks.com/vboard/s...d.php?t=321100 1968 Ford Farm Truck: http://67-72chevytrucks.com/vboard/s...=1#post6555587 |
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02-07-2010, 08:46 AM
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#80 |
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LET'S GO...MOUNTAINEERS
Join Date: Oct 2007
Location: Williamstown, WV
Posts: 339
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Re: 1972 GMC Shorty Conversion
Awesome skills.
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72 SWB/Step |
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02-08-2010, 07:07 PM
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#81 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Well, I got the rear axle all cleaned up and installed. I needed to install ECE's super track bar to see if it was going to work with my 3/4 ton upper frame mounting bracket. Jeff from ECE had told me my 3/4 ton frame bracket may not work with the super track bar. He said some 3/4 tons used a different frame bracket and would have to be reworked in order to mount the bar. Well sure enough, mine was the wrong one. I had to move and modify the frame bracket to get it to work the the ECE track bar. All worked out well though. At this point, the rear end is all set up. Next step is to reinstall the Gear Vendor so I can set the pinion angle and weld the axle perches. I've also marked up the frame for the c-notch.
Here's some pics. |
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02-08-2010, 07:21 PM
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#82 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Before and after shot of the upper track bar mount.
You'll notice I needed to move the bracket towards the rear and away from the frame slightly to work. I then needed to make up for the gap (on the vertical tab) between the frame and bracket, so I welded a piece of 3/8" plate to it and blended it in. All I need to finish it up is some new grade 8 hardware. Pics. |
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02-14-2010, 01:02 AM
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#83 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Got the axle and trailing arms all centered up, set the pinion angle and tack welded the spring perches to the axle. Also managed to get the frame cut for the c-notch. I used 1/4" plate to complete the notch. Should have everything welded up tomorrow.
Some pics. |
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02-14-2010, 01:17 AM
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#84 |
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67-72 parts collector,…
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,686
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Re: 1972 GMC Shorty Conversion
You do NICE work!
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02-14-2010, 01:31 AM
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#85 |
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Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: 1972 GMC Shorty Conversion
Just read through the entire build... this project is amazing. Nice work, can't wait to see the finished product.
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-Nate  1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) |
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02-14-2010, 02:34 AM
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#86 |
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Enjoying left field
Join Date: Jun 2008
Location: Dillon Montana
Posts: 900
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Re: 1972 GMC Shorty Conversion
subscribed. Looks really good. What kind of welder/wire are you using?
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02-14-2010, 02:49 AM
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#87 |
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Tot Roddin'
Join Date: Apr 2005
Location: Mid-MO
Posts: 24,461
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Re: 1972 GMC Shorty Conversion
I had to go find this pic for you... some inspiration for your project w/ wheels.
Lowered w/ wheels
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-Nate 1969 CST SWB - Project Blank Slate (4.5/6" ECE Static Drop, 6-lug disc brake upgrade (manual), Billet Specialties Vintec 20x8.5 255/40 (F) 20x10 295/40 (R), 250 I-6) 1960 AMF Skylark - Tot Roddin' (Lowered with custom frame; soon to include custom push bar and interior) 2008 Silverado CrewCab 1LT (5.3L, 3:73, 4x4, LT1, Z-71, Towing Package) Last edited by 72BlckButy; 02-14-2010 at 02:49 AM. |
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02-14-2010, 02:52 AM
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#88 |
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Registered User
Join Date: Oct 2008
Location: Arborg Manitoba Canada
Posts: 98
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Re: 1972 GMC Shorty Conversion
72Cheyenne454, just read through the thread since I just shortened the frame on my 71 C10 tonight. You do very nice work and I can appreciate having a clean truck to begin with.
A couple questions for you. Are you going to run an aftermarket trans cross member to help with the exhaust routing to the cut outs in the trailing arm cross member? If so buying or making it? Also this is the first time I am doing this and haven't done the box yet. Do the second set of front box mounts line up where they are supposed to for the front rib of the short box? Thanks and once again, great job! Richard
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STR Restoration and Customs 1971 C10 Custom 1964 Impala 2dr Hardtop 1965 Parisienne CS 1937 Nash Lafayette 1947 Willys CJ-2A |
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02-14-2010, 10:57 AM
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#89 |
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Registered User
Join Date: Oct 2009
Location: Rio Rancho NM
Posts: 74
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Re: 1972 GMC Shorty Conversion
72, you are one fine craftsman indeed......great pics and awesome progress
 Thanks for some great reading Dave
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Dave & Marilyn in Rio Rancho NM....1967 Chevrolet C-10 long step side.....250 3 spd. ..... 1968 Chevrolet C-10 long step side.....325 hp 350 4spd.....3" Exhaust....etc. 1965 Chevrolet Suburban K-10....292 4spd....cam....etc.  Bow Tie Baby
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02-14-2010, 10:21 PM
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#90 | |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Quote:
As for my welder, It's a Hobart Handler 180 with .030" wire. It's turned out to be a good "all around" welder, I'm very happy with it. |
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02-14-2010, 10:23 PM
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#91 | |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Quote:
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02-14-2010, 10:32 PM
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#92 | |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Quote:
As far as the trans crossmember, I'm not sure what will be required at this point. I need to get the cab sat back down on the frame to see how much clearance I have between the crossmember and cab floor. If I need a different crossmember, I'll fab one up before buying one. Not sure I understand your bed question, but I'll give it a shot. When the 12" is removed from the front half of the bed, the front bed mount holes will line up perfectly with the existing second set of frame box mounts. Is this what you were asking? |
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02-14-2010, 10:47 PM
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#93 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Some more pics... weld work completed on the spring perches, c-notch and exhaust passages.
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02-14-2010, 10:53 PM
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#94 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
All for now, thanks for looking!
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02-14-2010, 10:56 PM
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#95 |
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Registered User
Join Date: Jan 2010
Location: GRANDVIEW MO.
Posts: 3
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Re: 1972 GMC Shorty Conversion
That's great!! Looks like your doing a great job .
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02-14-2010, 11:44 PM
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#96 | |
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Registered User
Join Date: Oct 2008
Location: Arborg Manitoba Canada
Posts: 98
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Re: 1972 GMC Shorty Conversion
Quote:
Richard
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STR Restoration and Customs 1971 C10 Custom 1964 Impala 2dr Hardtop 1965 Parisienne CS 1937 Nash Lafayette 1947 Willys CJ-2A |
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02-15-2010, 10:25 AM
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#97 |
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Registered User
Join Date: May 2006
Location: at work
Posts: 2,552
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Re: 1972 GMC Shorty Conversion
Nice, Clean work you have done. This is the way these projects should be done!
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R.I.P. Killer 71 10/26/07 |
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02-15-2010, 09:28 PM
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#98 |
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Registered User
Join Date: Apr 2007
Location: San Diego
Posts: 453
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Re: 1972 GMC Shorty Conversion
Thanks again for the comments guys... they sure make me feel like I'm doing things the right way.
I mocked up the rear disc brakes today. Needed to get everything installed so I can figure where to mount the flex brake line bracket. Once I get the flex lines mounted, I can run the some hard lines. I think I have the mounting location figured out - see pics. I'll pick up some fuel and brake line tubing and get to work bending up some lines this coming week. Thanks for looking, here's a few pics of the disc brakes and my proposed flex line mount. |
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02-15-2010, 10:33 PM
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#99 |
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Registered User
Join Date: Aug 2005
Location: Hillsboro Oregon
Posts: 6,449
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Re: 1972 GMC Shorty Conversion
Lookin good. Those look like Summit caprice/impala rotors, right? But what calipers and brackets are those?
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02-15-2010, 11:14 PM
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#100 |
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Registered User
Join Date: Apr 2001
Location: DALLAS,TX
Posts: 21,920
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Re: 1972 GMC Shorty Conversion
Nice welds! Clean work & well thought out.... I love it.
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67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... Cubic inches is like Indiana Jones with a cheap pistol. |
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