How can I tell the difference between the year models? - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Tx Firefighter · 09-30-2003, 06:18 AM

So Longhorn man agrees with me about the disc brakes and Jewels agrees about the dash cluster.

Anybody else got any input on the disc brake issue?

As a note, I was yackin with the guy at Early Classic Enterprises a few week ago while placing an order. I wanted to know about the 6 lug rotors they sell with their kits. He told me he had to order 400 sets at a time to have them custom made. They are not just some rotor that came off another vehicle or something.

Kevin

Tim Cline · 01-11-2004, 01:22 PM

1967 was the only year that the wing window did not have a hole in it for the latch - It was a cary over from previous years.
1968 and up have the hole.

Tim Cline · 01-11-2004, 01:28 PM

The doors on a 1972 have a longer shaft on the window regulator because of the door panels are different and also the wing window is a little different but you would almost have to have them on a work bench to tell the difference.

**FRENCHBLUE72** · 01-11-2004, 02:26 PM

I will fuel the fire on disk brake's 71= disk brake's were standard so does that men they were optional before 71???

Longhorn Man · 01-11-2004, 04:13 PM

French, there were no disc brakes before 71.

1969 GMC · 01-11-2004, 04:59 PM

i still swear that Southpa has them optioned on his '70. but maybe he added them. i really don't know. i will try and find the pic he posted of his option sheet.

**FRENCHBLUE72** · 01-11-2004, 05:04 PM

I was only sayin they were standard in 71

1969 GMC · 01-11-2004, 05:11 PM

yeah, they were standard in '71. here is the pic i found of Southpa's option sticker, its typed out but I don't know why he would go to the trouble of making up an RPO for discs if he added them.

left column, 2nd from bottom

PanelDeland · 01-11-2004, 05:41 PM

option codes for brakes include
J50 Vacuum power brake equipment
J56 Heavy duty brake
J65 Mettallic brake facing
J66 15X5 rear brakes
J70brake booster hydralic
J73 heavy duty brake booster hydralic
J74 parking brake,spring loaded
J91 Trailer brake equipment
JA4 Dual brake system
JP1 Frame mounted brake booster hydralic

These are the codes listed in the RedBook, so a J52 could be the RPO for a optional disc brake (if one was offered) or it could be that it just fit the upgrade and was a blank code.

Another distinction between 67-68 is the grille trim.The strip across the hood and down the fenders was not on 67 but is on 68.Also bright trim on the grille area was an option later in 67 but was standard in 68.

dinnut · 01-11-2004, 06:08 PM

discs brakes were not offered in 70. if they were they would have to be 5 lug because 6 lug discs was never offered. there is an outside chance that dealers or even the factory could have experiment and installed 5 lug discs and 5 lug drums out back because of the widened rearend in SOME of the 70s.

roger0080 · 01-11-2004, 07:08 PM

That is not a correct VIN number that I can tell:
CE134-1Z58128

I have never seen a number after the dash but before the plant code.

Either he is trying to say that he has a 1971 via the "1" before the plant code "Z", or else his VIN number should be CE134-Z158128.

In which case, Southpa's VIN would decode as a 1971.

If this is true, the he has a 1971 that would have disc brakes anyways, so the home made option sticker doesn't prove much ...

09-30-2003, 06:18 AM	#26
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	So Longhorn man agrees with me about the disc brakes and Jewels agrees about the dash cluster. Anybody else got any input on the disc brake issue? As a note, I was yackin with the guy at Early Classic Enterprises a few week ago while placing an order. I wanted to know about the 6 lug rotors they sell with their kits. He told me he had to order 400 sets at a time to have them custom made. They are not just some rotor that came off another vehicle or something. Kevin __________________ I'm on the Instagram- @Gearhead_Kevin

01-11-2004, 01:22 PM	#27
Tim Cline Registered User Join Date: Jan 2004 Location: North East Alabama Posts: 47	1967 was the only year that the wing window did not have a hole in it for the latch - It was a cary over from previous years. 1968 and up have the hole. __________________ 67 GMC SWB Project:60 4BM 350 4SPD 67 Chevy C10 Custom LWB V8 Project 69 LWB IL6 3 on tree project 71 SWB Frame off project 72 LWB C10 Factory Tilt Project.

01-11-2004, 01:28 PM	#28
Tim Cline Registered User Join Date: Jan 2004 Location: North East Alabama Posts: 47	The doors on a 1972 have a longer shaft on the window regulator because of the door panels are different and also the wing window is a little different but you would almost have to have them on a work bench to tell the difference. __________________ 67 GMC SWB Project:60 4BM 350 4SPD 67 Chevy C10 Custom LWB V8 Project 69 LWB IL6 3 on tree project 71 SWB Frame off project 72 LWB C10 Factory Tilt Project.

01-11-2004, 02:26 PM	#29
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	I will fuel the fire on disk brake's 71= disk brake's were standard so does that men they were optional before 71??? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

01-11-2004, 04:59 PM	#31
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	i still swear that Southpa has them optioned on his '70. but maybe he added them. i really don't know. i will try and find the pic he posted of his option sheet. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

01-11-2004, 04:13 PM	#30
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	French, there were no disc brakes before 71.

01-11-2004, 05:04 PM	#32
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,608	I was only sayin they were standard in 71 __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

01-11-2004, 05:11 PM	#33
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	yeah, they were standard in '71. here is the pic i found of Southpa's option sticker, its typed out but I don't know why he would go to the trouble of making up an RPO for discs if he added them. left column, 2nd from bottom __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

01-11-2004, 05:41 PM	#34
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	option codes for brakes include J50 Vacuum power brake equipment J56 Heavy duty brake J65 Mettallic brake facing J66 15X5 rear brakes J70brake booster hydralic J73 heavy duty brake booster hydralic J74 parking brake,spring loaded J91 Trailer brake equipment JA4 Dual brake system JP1 Frame mounted brake booster hydralic These are the codes listed in the RedBook, so a J52 could be the RPO for a optional disc brake (if one was offered) or it could be that it just fit the upgrade and was a blank code. Another distinction between 67-68 is the grille trim.The strip across the hood and down the fenders was not on 67 but is on 68.Also bright trim on the grille area was an option later in 67 but was standard in 68. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

01-11-2004, 06:08 PM	#35
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	discs brakes were not offered in 70. if they were they would have to be 5 lug because 6 lug discs was never offered. there is an outside chance that dealers or even the factory could have experiment and installed 5 lug discs and 5 lug drums out back because of the widened rearend in SOME of the 70s. __________________ 70 longbed 496/th400/Ford 9"

01-11-2004, 07:08 PM	#36
roger0080 Registered User Join Date: Nov 2000 Location: Carver County, Minnesota, USA Posts: 626	That is not a correct VIN number that I can tell: CE134-1Z58128 I have never seen a number after the dash but before the plant code. Either he is trying to say that he has a 1971 via the "1" before the plant code "Z", or else his VIN number should be CE134-Z158128. In which case, Southpa's VIN would decode as a 1971. If this is true, the he has a 1971 that would have disc brakes anyways, so the home made option sticker doesn't prove much ... __________________ 72 Chev C-10 90% restored (former AZ truck) ... 71 Chev K-20 Cheyenne my vacation crusier... 72 Chev C-10 Now retired and striped after many faithful miles... 72 GMC 1500 Retired to the junk yard after bought new in '71...



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