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02-15-2012, 05:59 PM
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#251 |
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Cool Truck
Join Date: Dec 2008
Location: Bowie,MD
Posts: 1,869
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Re: 67-72 C/K/T-40's-90's!
Obviously I must not be driving right, I average around 8 mpg with my 68 3/4 ton
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1968 Chevrolet C20 Longhorn "Cool Truck" 1937 Chevrolet Pickup - Project Looking for a patina'd 68 50th Anniversary longbed |
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02-15-2012, 07:27 PM
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#252 |
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Registered User
Join Date: Apr 2008
Location: Royse City TX
Posts: 43
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Re: 67-72 C/K/T-40's-90's!
Thanks
I've been known to not always drive right myself  I'll take it on 100 mile get acquainted trip here soon and see what it will do. I usually don't beat on em too hard pulling a big trailer. That can get expensive real quick in more ways than one. Here are few pictures of my COE (post 487) http://67-72chevytrucks.com/vboard/s...82#post3650582
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'50 GMC 350 COE, 702 V-12 / 4L80E powered '71 GMC 6500, 427, 5 spd |
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02-20-2012, 05:59 PM
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#253 |
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Registered User
Join Date: Jun 2010
Location: Jefferson, MD
Posts: 2,397
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Re: 67-72 C/K/T-40's-90's!
Here's an interesting one:
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'68 Dodge Dart 270, 225, 904, 2.76--"Lucy" 1996 Gmc 1500 Z71, 350, 4l60e, 3.73s 1995 Jeep Wrangler Rio Grande 2.5, AX5, 4.10s 1989 Toyota Pickup 22re, auto, 3.73 |
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02-20-2012, 09:45 PM
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#254 |
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Where's my beer?
Join Date: Oct 2004
Location: Glen Allen, VA
Posts: 1,772
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Re: 67-72 C/K/T-40's-90's!
I'm not too familiar with these old big rigs and medium duty trucks. Can someone please explain how the twin stick shifters worked? I am however loving all these pictures!
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70 C10, shortstep, .30 over 250,Hurst shifted 3 spd parts hauler. Holley 390, Clifford Intake, Header, ported cylinder head, unknown bigger cam. 79 Corvette L82, 4 spd, black, red interior, headers, flowmasters, and unkown bigger cam. '03 Grand Cherokee Laredo, 4.0 4x4 daily driver. 165K miles, and runs great '08 Tahoe LTZ 4x4 155K |
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02-21-2012, 01:15 AM
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#255 |
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Registered User
Join Date: Nov 2001
Location: Moneta, VA USA
Posts: 3,087
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Re: 67-72 C/K/T-40's-90's!
With Twin Sticks, one trans is the Main and the other the Auxiliary. To go through all the gears you shift the Aux 2 to 3 times, depending on the trans, to the Main once till you go through all the gears. There are also many different types. There are 5 X 2 Duplex's (usually in Macks), 5 X 3 Triplex's and 5 X 4 Quadraplex's, the most common, as well as a couple of others. Not to make it too confusing, there are more than one different Quadraplex but the most common Quadraplex is actually only shifted 13 times. Some of the gears in some of the trans can be shifted both at the same time, but most have to be shifted one at a time. When one at a time and after shifting the Main, you need to bring the Revs up in Nuetral to get the Aux back into Low. There are actually a good number of videos on YouTube showing Twin Stick shifting. One is Twin Stick Pappy. I believe that one is a Triplex. Once you click onto to that video, many others will show up. They are the hardest of all to shift and the most challenging and some of the YouTube guys don't always do the best job.
Bill
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'60-'72 Chev/GMC Fan GMC 9500 Fan Detroit Diesel Fan Last edited by C10 - C90 Bill; 02-21-2012 at 01:21 AM. |
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02-21-2012, 08:03 AM
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#256 | |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 67-72 C/K/T-40's-90's!
Quote:
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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02-25-2012, 07:37 PM
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#257 |
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Registered User
Join Date: Nov 2001
Location: Moneta, VA USA
Posts: 3,087
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Re: 67-72 C/K/T-40's-90's!
Here is the video I mentioned above. He is one of the better shifters on YouTube. You will notice that he uses no clutch most of the time, but has to use it a couple of times. I myself, although in the minority, like to use the clutch all of the time.
It's not a Chevy but a fine example of an old Mack. It is kind of hard to find a good Chevy or GMC example of Twin Sticks:
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'60-'72 Chev/GMC Fan GMC 9500 Fan Detroit Diesel Fan |
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02-25-2012, 08:01 PM
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#258 |
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Registered User
Join Date: Nov 2001
Location: Moneta, VA USA
Posts: 3,087
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Re: 67-72 C/K/T-40's-90's!
Although I like Twin Sticks, my favorite trans is the 10-Speed Road Ranger. Here is a pretty good example of one. For those not familiar a 10-Speed, it Shifts 5 with the Button Down and 5 with the Button Up. Although in this video, he starts out in 3rd. He also starts in 3rd at time 2:46. Notice he also uses the clutch just at certain times. It is also a good example of a great sounding 6-71 Detroit:
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'60-'72 Chev/GMC Fan GMC 9500 Fan Detroit Diesel Fan |
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03-12-2012, 04:54 AM
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#259 |
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Registered User
Join Date: Mar 2012
Location: Milwaukie, Oregon
Posts: 69
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Re: 67-72 C/K/T-40's-90's!
About those Chevy (1967-84) and GMC (1970-84) B-series school buses with the '67-style chassis: that design ran through December 1983, and in January 1984 adopted the design of the '73-'87 medium-duty cowls. A 1984 Chevy School Bus brochure confirms the new design introduction.
~Ben |
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04-26-2012, 10:10 PM
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#260 |
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Registered User
Join Date: Jan 2009
Location: Sandersville, GA
Posts: 298
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Re: 67-72 C/K/T-40's-90's!
Cell phone pic of one I saw yesterday by the river while trout fishing. It's a C90 Diesel dual axle.
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How 'Bout them Dawgs!  '10 Traverse LTZ 03 Silverado Z71 ext cab 99 Yamaha Grizzly 600 72 C10 350/350 sportside bed. 68 C30 flatbed. 350 4-speed. "I've got a good memory, it's just short!" |
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04-26-2012, 11:33 PM
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#261 |
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Registered User
Join Date: Nov 2001
Location: Moneta, VA USA
Posts: 3,087
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Re: 67-72 C/K/T-40's-90's!
Still looks pretty good. Would make a nice HD Rollback.
Bill
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'60-'72 Chev/GMC Fan GMC 9500 Fan Detroit Diesel Fan |
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05-31-2012, 12:50 AM
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#262 |
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Registered User
Join Date: Nov 2011
Location: Sheffield, ALA
Posts: 2,471
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Re: 67-72 C/K/T-40's-90's!
Original owner.
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08-01-2012, 12:59 AM
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#263 |
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Registered User
Join Date: Mar 2011
Location: Oran,Algeria
Posts: 112
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Re: 67-72 C/K/T-40's-90's!
here's a chevy c60 from djelfa , algeria (about 292 km south algiers)
this one is abandoned on the side of the trans sahara hwy road and it's for sale |
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08-01-2012, 01:03 AM
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#264 |
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Registered User
Join Date: Mar 2011
Location: Oran,Algeria
Posts: 112
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Re: 67-72 C/K/T-40's-90's!
my favorite truck ever
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08-01-2012, 01:06 AM
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#265 |
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Registered User
Join Date: Mar 2011
Location: Oran,Algeria
Posts: 112
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Re: 67-72 C/K/T-40's-90's!
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08-01-2012, 01:10 AM
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#266 |
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Registered User
Join Date: Mar 2011
Location: Oran,Algeria
Posts: 112
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Re: 67-72 C/K/T-40's-90's!
last 2 pics , i wish i can find more of these old chevy trucks and i will post them here , inchalah
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08-01-2012, 07:36 AM
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#267 |
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Special Order
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,851
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Re: 67-72 C/K/T-40's-90's!
From the first pictures I was thinking it's sitting in the middle of nowhere. If they are scarce,that's a great find.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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08-01-2012, 08:20 AM
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#268 |
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Registered User
 
Join Date: Sep 2010
Location: Northport, Alabama
Posts: 1,353
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Re: 67-72 C/K/T-40's-90's!
. . . .
Here are a few of mine over the years: My 71 GMC Astro 95 in 1977. My first GMC bus, 5873. ( inside and out ) My only Chevy, 5561. The last gasoline powered bus Baltimore County Schools purchased, 5964. . . . . |
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08-01-2012, 08:45 AM
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#269 |
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Registered User
Join Date: Nov 2001
Location: Moneta, VA USA
Posts: 3,087
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Re: 67-72 C/K/T-40's-90's!
Air Brakes with the old style pedal in bus #5561. Don't believe I ever saw one before.
Was your Astro Detroit powered?
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'60-'72 Chev/GMC Fan GMC 9500 Fan Detroit Diesel Fan |
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08-01-2012, 10:53 PM
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#270 | |
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Registered User
Join Date: Mar 2011
Location: Oran,Algeria
Posts: 112
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Re: 67-72 C/K/T-40's-90's!
Quote:
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08-01-2012, 11:20 PM
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#271 | |
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Registered User
Join Date: Sep 2010
Location: Northport, Alabama
Posts: 1,353
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Re: 67-72 C/K/T-40's-90's!
Quote:
The picture of the interior is actually from 5873 ( the pictures didn't load in the right order, TWICE !!! ) Yes, the Astro had a 318 HP Detroit V8 with a 13 speed . . . VERY underpowered in todays world without a turbo !!! ( but it had power steering and air . . . most didn't in 1977.) . . . . |
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08-02-2012, 03:42 PM
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#272 | |
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Registered User
Join Date: Nov 2001
Location: Moneta, VA USA
Posts: 3,087
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Re: 67-72 C/K/T-40's-90's!
Quote:
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'60-'72 Chev/GMC Fan GMC 9500 Fan Detroit Diesel Fan |
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08-02-2012, 04:08 PM
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#273 |
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Registered User
Join Date: Oct 2009
Location: Salvisa, Ky
Posts: 131
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Re: 67-72 C/K/T-40's-90's!
My 1988 Kodiak has that type pedal and has air brakes. I have built several 84 thru 88 C7000s & Topkicks that had the same type pedal.
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08-02-2012, 04:26 PM
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#274 |
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Account Suspended
Join Date: May 2012
Location: Toughest lil' Town in Texas
Posts: 856
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Re: 67-72 C/K/T-40's-90's!
Guys let me tell ya im absolutley in love with this ol 68 c50 that sits at the back of my grandparents house its an aluminum box truck but its really sweet its got a straight six i want to haul it home but im only 16 and its bout a foot in the ground sunk
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08-02-2012, 10:16 PM
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#275 | |
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Registered User
Join Date: Sep 2010
Location: Northport, Alabama
Posts: 1,353
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Re: 67-72 C/K/T-40's-90's!
Quote:
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