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'71 GMC 9500 Dump, Extended Hood.


https://forumtest.aths.org/Topic92709.aspx
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By C10 - C90 Bill - Saturday, July 31, 2010 3:36 PM
Found this surfing around:

http://wichita.craigslist.org/grd/1799598125.html

You don't see too many straight trucks with an Extended Hood.
By C10 - C90 Bill - Saturday, July 31, 2010 3:54 PM
By the way, if those Single Headlights are original, the truck could be a Chevy C-90 with a later GMC Grille.

Edit:  After Eric has mentioned it, it seems like it is a Chevy Grille with GMC letters on it.   The newer GMC Grille would have it's Headlights in a lower position.
By Bill White - Saturday, July 31, 2010 4:09 PM
Bill, I had 5 road tractors just like it, GMC 9500 4 with 8V71 and one with a 12V71.......Bill
By skeeter - Saturday, July 31, 2010 4:17 PM
would be nice to have one today with a 12 in it...:)
By C10 - C90 Bill - Saturday, July 31, 2010 4:24 PM
Bill White (7/31/2010)
Bill, I had 5 road tractors just like it, GMC 9500 4 with 8V71 and one with a 12V71.......Bill


Bill, Did you put the 12V-71 in yourself?
By Bill White - Saturday, July 31, 2010 4:52 PM
Bill, The 12V71 was installed at the factory.

I wish I had it back been gone a long time now sold it to a grain hauler in Wyo.....Bill
By chocko - Saturday, July 31, 2010 5:31 PM
Bill White your long nose 9500 was factory 12V-71 nice option I remember in early 1970'S Roadway,Wilson and other freight outfits had plenty of the long hood 9500 mostly Detroit 8v-71 powered. Where did they all go. Joe D.
By Bill White - Saturday, July 31, 2010 5:36 PM
Joe D., I always liked them I also had short hood 9500s with 6-71s they all served me well.....Bill W.
By chocko - Saturday, July 31, 2010 5:46 PM
Bill White in the 1970'S my brothers and I had 6 9500'S. 6-71,8V-71 and 2 Formula 290'S. We had them leased on to Automobile Transport,Wayne,Mich. K.A.T.,and Dixie Auto Transport Jacksonville, Florida. Iliked them because they had power steering our Whites and Brockway did not. Joe D.
By chocko - Saturday, July 31, 2010 5:48 PM
chocko (7/31/2010)
Bill White in the 1970'S my brothers and I had 6 9500'S. 6-71,8V-71 and 2 Formula 290'S. We had them leased on to Automobile Transport,Wayne,Mich. K.A.T.,and Dixie Auto Transport Jacksonville, Florida. Iliked them because they had power steering I thought that I was in High Cotton then with it. Our Whites and Brockway did not. Joe D.
By C10 - C90 Bill - Saturday, July 31, 2010 6:06 PM
Bill White (7/31/2010)
Bill, The 12V71 was installed at the factory.


That's interesting, as I heard the Extended Hood 9500's never got a 12V71.  I believe we were all talking about that a while back on here, about a year ago.  OK, now I'm puzzled. 
By Bill White - Saturday, July 31, 2010 6:51 PM
Bill T., I bought mine at the GMC dealer in Des Moines, in the mid-sixties as I remember it was it

was available with the DD 12V-71 until the around early 70s I know of one other that was bought

in Denver by Clarence Edwards in 1968 or 69.............Bill
By Michelle Cole - Sunday, August 01, 2010 8:09 AM
I saw a very nice looking GMC with the same cab but a shorter hood for sale here in Smithville yesterday. I will try and get by today and make a few pictures.
By wdegroat - Sunday, August 01, 2010 8:56 AM
Later models of those trucks had the cab mounts higher.  Was that only for models with the bigger engines?  Was the hood the same on high mounted cabs?
By W900A - Sunday, August 01, 2010 9:12 AM
I was told many times that the 12v71 was not available in the long hood Jimmys.  I should really get around to doing more research.  I know  of a Long hood that was a wrecker in my neighborhood as a child.  It was a 9500 with a 12v71.  The owner told me it was a factory install originally out of Cali.  He told me they put a cab that was designed for a Cummins on it to gain clearance.  Makes sense,  the Cummins cabs did have bigger dog-houses and where higher.  With the Long hood was still around so I could inspect it,  unfortunately it's long gone to scrap.
By Bill White - Sunday, August 01, 2010 11:08 AM
12v71 is about the same length as a 6-71, and if memory serv's me right 12v71 is about 32 or 3300 lbs
By John_Costley - Sunday, August 01, 2010 10:13 PM
wdegroat (8/1/2010)
Later models of those trucks had the cab mounts higher.  Was that only for models with the bigger engines?  Was the hood the same on high mounted cabs?


The high cab came out when they started offering Cummins engines in them.The headlights are at the bottom of the grill on high mounts, center on low mounts.John
By John_Costley - Sunday, August 01, 2010 10:20 PM
Bill White (8/1/2010)
12v71 is about the same length as a 6-71, and if memory serv's me right 12v71 is about 32 or 3300 lbs


Bill,

The 12V71 in truck trim is 3 3/4" to 4 3/4" longer than a 6-71, depending on how the 6-71 is dressed.John
By John_Costley - Sunday, August 01, 2010 10:46 PM
Guys,

Here are spec sheet pages from '65, '69', '70, and '75.None of them list the 12V71 as a factory option.The long hood 9500s look real long because of that pickup sized cab, but they actually only have a 114" BBC.John
By Bill White - Monday, August 02, 2010 2:58 AM
John,

I orderd mine from GMC in Des Moines, IA. with the 12V in it and had it for 5 years.

I used DD for about ten years then went to IH with Cummins.

Bill
By junkmandan - Monday, August 02, 2010 4:08 AM
Bill White------There's been rumors for years of V-12s in the MH 9500..............But I don't believe it would fit,certainly without a doghouse ,and /or moving the cab back and extending the hood . I've got pictures of the 6-71 in the MI 9500 taken 2 years ago in the Fremont/Tiffen area of Ohio ,but an inline wouldn't interfere with the throttle area of the cab like the left bank of a V would .Now maybe if the cab was jacked up 6-8' to clear the left valve cover.................Or ,like the Chevy pulling truck "Shameless",from Crestline ,Oh. which has a KT Cummins ,the cab has been moved back a foot .      Pictures.............with the hood open ?
Cabs for the 6 and 8V71 have a solid firewall [no doghouse] ,the 290/335 Cummins application used the same doghouse  that the 6-71 used in the shortnose 90" BBC cab  . The cab for the JH series 8V71 90" BBC shortnose was jacked up 4" and had a wider doghouse ,[within about 4" from the right cab mount] and the engine was laid to the right about 15* .In this application ,our mechanics still loosened the cab mounts  to lift the cab to enable removing the left valve cover with the original "humped" stamped streel valve covers . The 60 series in the Brigadier had the widest dog house that extended clear to the right cab mount to give room for the turbo,cab also jacked up 4" . But none of this helped on the left side where you'd have interferance with the left valve cover...........or perhaps the flywheel housing .And the 12 wouldn't be tilted to the right because of the huge oil cooler on the right front .
By Bill White - Monday, August 02, 2010 5:23 AM
All I know is that I bought it new and I know what I had even if it was 40 yrs back and about 300 tractors ago and when I was rid of the GMs and started buying IHs with Cummins I really had somethig that would last and make money..........Bill
By LargeCar3406 - Monday, August 02, 2010 7:55 AM
thats a nice long hoog gmc but that grill is throwin me off isnt that the grill they use on the chevy c90's? im guessin there easy to switch grills. i also found this on craigslist a 63 chevy c80 for 500 bucks https://craiglook.com/go?u=http%3A%2F%2Fcosprings.craigslist.org%2Fcto%2F1824073797.html&m=d5eb65dfcc173d05d709114c17cb53ec&j

Eric
By C10 - C90 Bill - Monday, August 02, 2010 10:49 AM
that grill is throwin me off isnt that the grill they use on the chevy c90's? im guessin there easy to switch grills.


Yeah, I mentioned something about that in my second post and now that you say it, I believe it's a Chevy Grille with GMC letters on it.

Interesting '63 C-80, by the way.
By Bill White - Monday, August 02, 2010 11:29 AM
This is one with single lites

By LargeCar3406 - Monday, August 02, 2010 11:34 AM
C10 - C90 Bill (8/2/2010)
that grill is throwin me off isnt that the grill they use on the chevy c90's? im guessin there easy to switch grills.


Yeah, I mentioned something about that in my second post and now that you say it, I believe it's a Chevy Grille with GMC letters on it.

Interesting '63 C-80, by the way.


yeah im pretty sure it culd be a c90 with just gmc letters on it dont kno why the owner did that but who nows. yeah that cheavy c80 is nice and id buy it too since its soo cheap but its on the otherside of country shipping would cost a fortune, its just not worth it.

eric
By C10 - C90 Bill - Monday, August 02, 2010 12:37 PM

yeah that cheavy c80 is nice and id buy it too since its soo cheap but its on the otherside of country shipping would cost a fortune, its just not worth it.


Yeah, I wouldn't mind it myself, but it's about 2000 miles from me.  It says it's a diesel.  Wondering if it's a 6-71.  Would make a nice Rollback. 
By LargeCar3406 - Monday, August 02, 2010 12:57 PM
C10 - C90 Bill (8/2/2010)
[quote]
Yeah, I wouldn't mind it myself, but it's about 2000 miles from me.  It says it's a diesel.  Wondering if it's a 6-71.  Would make a nice Rollback. 


yeah its just too far plus id have too find a yard for it too stay at not that i wouldnt mind at all but shipping would be insane and ya it being a diesel caught my attention i would hope its a 671 tho i wonder if it has a 6v53 in it hmm. a roll back would be pretty cool on the old truck could use it for a number of things.

eric
By Bill White - Monday, August 02, 2010 2:11 PM
 Another fine MH9500

By junkmandan - Monday, August 02, 2010 3:54 PM
"B series" on Craigslist could have 6V71,6V53,inline 6-71 or perhaps a Toro Flow .
By goldnugget#61 - Monday, August 02, 2010 4:31 PM
Bill sounds more than credible with "I bought one with a 12v71" !  Does anyone know Randy Brown personally?  He had his

long nose jimmy at macungie with original paint that he bought from AZ.  Wondering if he knows whether his is factory deal

or not.
By Jeff Lakaszcyck - Monday, August 02, 2010 5:21 PM
I don't know Randy, but here is his truck.

By C10 - C90 Bill - Monday, August 02, 2010 5:32 PM
Bill and Jeff, those are 2 fine examples.

Here is one of my favorites:

hankstruckpictures/trucks/macneil/2004/aug/wilkinsons_wrecker_service.jpg
By BobBray - Monday, August 02, 2010 11:13 PM
I have heard that during the 70's GMC built some special order trucks that had different engines in them.  The 12V-71 was not a regular option in the Astro 95 until 1972, but some were built before that.  I have heard of 8V-71's installed in tandem axle long wheelbase steel tilt cabs for use as car haulers too.  Who knows what all rolled out of Pontiac back in them days! 
By junkmandan - Tuesday, August 03, 2010 3:33 AM
I talked with Randy Brown at Macungie this year ,there was a small reunion of Mercury sleepers [3,I believe] ,his friend had a KW with Mercury sleeper parked next to Randy . It was shown on a trailer in 2008,when I got about a dozen or more detail pictures of the 9500 . It had the black pleated material in the cab and came from Arizona or New Mexico .  8V71 engine,13 speed , Pete or Freightliner cutoff on rear .

Earley literature makes reference to a so called western model , might have been 9501 ,instead of 9500 . I wonder what that included  ? I have sales data books for 1968 and 73  .
By dclerici - Tuesday, August 03, 2010 3:40 AM
I believe that Pacific Motor Trucking (PMT, Southern Pacific Railroad) had some of the steel cabovers with 8V's as car haulers. I also remember that they also had Dodge L1000's with 8V's as car haulers.
By goldnugget#61 - Tuesday, August 03, 2010 6:44 AM
Ok, sorry bout that, for some reason I was thinkin  Randy had a 12 in that truck. 
By LargeCar3406 - Tuesday, August 03, 2010 7:45 AM
is there for some reason for the gmc 7500, 8500 and 9500's why some have the single round headlights on the bottom inside corners of the grill vs the double round headlights in the middle grill was that a option or somthin too do with the year of truck?

Eric
By C10 - C90 Bill - Tuesday, August 03, 2010 10:05 AM
LargeCar3406 (8/3/2010)
is there for some reason for the gmc 7500, 8500 and 9500's why some have the single round headlights on the bottom inside corners of the grill vs the double round headlights in the middle grill was that a option or somthin too do with the year of truck?


The way I have learned it is the 9500's that had higher cabs with bigger radiators had the single headlights that were lower in the grille.  Otherwise the lights would be too high up.  I also believe the single lights may be better lights, visability wise, compared to the doubles.  As far as I know, the 7500 and the 8500 never got the higher cabs.  An 8500 is actually a 9500 with a smaller engine.  Those trucks with the smaller engine, didn't need the higher cab.
By BobBray - Tuesday, August 03, 2010 10:48 PM
Yes, it was P.M.T. that had those 8V-71 Steel Tilts.  As for the M-9501 'Western',  it was basically a west coast light weight high performance option package on a long wheelbase tandem tractor.  I don't know everything that was included, but some of the options were Alcoa wheels, SQHD axles, RTO-913, Spicer 5X4 or 16 speed transmissions, chrome stacks and Lubrifiner.  Oh, and that 3 trumpet Grover horn, too!  They came with either a 6-71 or 8V-71, I would imagine most got 318's.  Sometime in '69 or '70, the 9501 was dropped as a separate model, but all the options were still offered on the long nose 9500's. 
By LargeCar3406 - Wednesday, August 04, 2010 7:55 AM
soo the trucks with the single round headlights had the west coast performance option right? now i see why there are more of the double rounded headlights then the west coast ones, i think the west coast option looks alot better but thats just my opion, if it came down too a good deal id probeley just changei dtake eitehr and if i had to id change out the grill to teh west coast style. how long were they in production for them 9500 trucks from year to year? ohh and check out the sharp 9500 pulling a trailer bus http://www.youtube.com/watch?v=uMMysQJ-Xa8


eric
By LargeCar3406 - Wednesday, August 04, 2010 9:23 AM
68CRACKERBOX (8/4/2010)
ERIC,

THATS NOT RIGHT, THE SINGLE HEADLIGHTS WERE IN THE LATER 9500'S 73 AND UP ,WHEN THEY RAISED THE CAB UP.IN THE SHORT HOOD HOOD IT WAS TRUCKS WITH 8V71,6V92 AND CUMMINS.AND ALL OF THE LONG HOODS.

BOB


ohh ok i understand now thanks bob. i almost got a 9500 71 short hood with a 671 single axle and a 10 speed it had a dump body on it but it was not hooked up for 500 bucks unfortunely i was a day late and he already sold it, it ran drove fine he said he didnt want to scrap it cause it was a good old truck worked good, but he also said that he saw the the new owner driving the truck into the scrap yard he was really pissed about it i dont blame him either cause i told i had plans for that truck but too this day it still bothers me plus the truck was soo close to my house. anyways i thought share that story hopefully ill run into another deal like that soon.

eric
By C10 - C90 Bill - Wednesday, August 04, 2010 9:25 AM
I've also heard of the "West Coast Package", but I believe Bob has it correct.  I was more or less saying the same thing in my last post, but Bob has it in more detail.  It seems that any truck that needed more room in the engine compartment and/or needed a bigger radiator, got the higher cab and all that got the higher cab also got the single headlights which were lower in the grille. 

Also, Eric, it would take more than just changing the grille to convert one.  You would need to change out what is behind the grille as well, but then you would have a "Lower Style" truck with the "Higher Style" grille.  There are also some other details between the two.  Notice the difference in the Fenders, just above the tires. 
By BobBray - Wednesday, August 04, 2010 10:54 AM
Yes, the '66-'68 West Coast M-9500's all had low mount cabs with 4 headlights in the center of the grille.
By LargeCar3406 - Wednesday, August 04, 2010 2:33 PM
C10 - C90 Bill (8/4/2010)
I've also heard of the "West Coast Package", but I believe Bob has it correct.  I was more or less saying the same thing in my last post, but Bob has it in more detail.  It seems that any truck that needed more room in the engine compartment and/or needed a bigger radiator, got the higher cab and all that got the higher cab also got the single headlights which were lower in the grille. 

Also, Eric, it would take more than just changing the grille to convert one.  You would need to change out what is behind the grille as well, but then you would have a "Lower Style" truck with the "Higher Style" grille.  There are also some other details between the two.  Notice the difference in the Fenders, just above the tires. 


ohh really id have too change out the stuff behide the grill too seems to be more of a project then i thought hmm. i also found what appears to be a gmc 9500 but with a chevy c90 grill in it just like the other truck was posted only the gmc lettering is not there http://www.logtruckforsale.com/gmc_9500.php
By C10 - C90 Bill - Wednesday, August 04, 2010 2:49 PM
[quote]i also found what appears to be a gmc 9500 but with a chevy c90 grill in it just like the other truck was posted only the gmc lettering is not there http://www.logtruckforsale.com/gmc_9500.php[/quote]

It looks like it has a Chevy Tilt Nose on it.  Also looks like it had the cab changed, if it is an original 9500.  It has a 1-piece windshield. 

It list a lot of things about the truck, but doesn't mention the engine. 
By long9500 - Wednesday, August 04, 2010 3:58 PM
I'm late to this conversation, been away from the computer for a few weeks. Getting back to the 12v71 topic, i looked at a MH9500 in northwestern Ontario hauling pulpwood that had a 12v71 in it and the high mount cab. From what I could remember it had a short dog house in the cab like the short nose with a 6v92. Not sure if any of this was factory.

As far as the 2 lower headlights and the 4 head lights, federal regulation for head light distance to ground is 54" maximum i believe, and a high mount cab would make the 4 lights in the center of the grill too high.
By Ashton Lewis - Wednesday, August 04, 2010 4:29 PM
C10-C90 Bill,

The truck may very well be a 7500 series with regular production option T50 tilt hood. I sold quite a few Chevrolet's in the 1970's which were model JV72013. The JV was 6V-53 powered. They came standard with butterfly hoods and I ordered them with tilt hood. The 8500 and 9500 all had two piece windshields. The 7500 cab would not have come with a large enough dog house to accept a 6-71 or NHC250 Cummins which would have been the engine in a 9500.
By junkmandan - Wednesday, August 04, 2010 4:43 PM
Although not stated in the ad,the Chevy log truck has a 1 piece windshield  ,and with the 5.17 gear ratio probably has a 6V53 engine .
By C10 - C90 Bill - Wednesday, August 04, 2010 5:01 PM
Ashton,

In your experiences selling new trucks, did you ever see a C-90 or a MH 9500 with a 12V71?  (Trying to stay as neutral as I can here.  I have respect for both sides of the debate).
By BobBray - Wednesday, August 04, 2010 10:08 PM
Were the 6V-53 JV 7500's the ones with the smaller doghouse that covered the air brake compressor?  I also remember seeing a few JE and HE 8500's which had 427 gassers in them (and no doghouse).
By Ashton Lewis - Thursday, August 05, 2010 12:52 AM
C10-C90 Bill,

I never saw a GMC or Chevrolet convential cab with a 12V-71N. The second letter of the model designation is the engine type. H-8V-71, I-6-71, P-12V-71, C-NTC Cummins, etc. There never was a MP model which would have been a 1143/4" bbc 6x4 truck or tractor with 12V-71 engine. If they did build 12V-71s in long hoods it would have been a SEO (special equiptment option) offering of a MH model. Each year they published a SEO book of about 20 pages listing the SEOs. In the published SEOs the 12V-71 was never listed. Attached is picture of an SEO, which is air conditioning on a DP model a 12V-71 aluminum tilt cab. The air conditioning compressor was installed after the truck came of the assembly line in the shop where they did these type of additions. On 8v-71s the a.c. compressor was mounted on the top front of the engine and this could not be done on a 12V-71. The Bendix air compressor had a through shaft with a pulley to drive the Frigidaire compressor. It is all GMC factory installed but boy does it look home made. Check out the belt shield and the belt tension adjustment bracketry.

I think we can now agree that if they did install a 12V-71 in a 1143/4" bbc cab you were not going to have air conditioning.

I also agree with others before me who have said the engine probably would not have fit. Didn't Peterbilt require an extended hood for the 12V-71 and I think their standard hood was a 119" cab so why would it fit in a 1143/4" cab?

My biggest reason for saying NO to a 12V-71 M model is where would you install two air cleaners? The fiberglass hood had two inlets and molded ducting to one air cleaner. In the 70s there was no single air cleaner that could flow and filter enough air under the hood.

Some say anything is possible!
By Bill White - Thursday, August 05, 2010 5:21 AM
Ashton,

My 9500 had no air cond. and I did not order air cond. until the eary 80s

(I got tired of hearing drivers cry) and I had a  Farr air cleaner that mounted outside the hood.

Bill
By C10 - C90 Bill - Thursday, August 05, 2010 5:46 AM
BobBray (8/5/2010)
Were the 6V-53 JV 7500's the ones with the smaller doghouse that covered the air brake compressor? 


My '67 7500 with a 6V53 had the Compressor Regulator under the dog house and not real fun to change.  I have heard that the newer 7500's had them in a more convienient place. 
By Road Boss - Sunday, February 20, 2011 6:23 AM
These trucks really had a classic look to them.  With more tasteful styling these would like great on the road today.