how to detect what year chassis you have? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

drivea55 · 01-03-2015, 11:25 PM

Hey guys,

I am usually over at the 47-59 section cause my cab is a 50. I was told it is sitting on a 72 chassis.

I would like to buy drop spindles but am told that 71+72 are different cause the ball joints are different sizes.

I have 4 wheel drum on 6 lug axles, coil springs in the rear, no leaf.

What is the best way to determine the year?

I did notice some numbers stamped on the pass. outer frame rail. not sure if that will help any.

thanks in advance for any help in this matter.

Brian

**DeadheadNM** · 01-03-2015, 11:29 PM

A partial VIN may be stamped atop on the LH frame rail just posterior from where the steering box is attached. That # may also be helpful - post both if possible.

**BlueBullet** · 01-03-2015, 11:31 PM

I am no expert but sounds like it would be a 67-70 frame if it is drums all around there also should be a Vin stamped in frame buy steering box on drivers side.

Maddoxdb · 01-03-2015, 11:31 PM

I would say 63-70 being that you have 4 wheel drum and 6 lug hubs. 71-72 is 5 lug and disk brake front. Not sure how to tell exact year model but maybe somebody else will chime in.

Maddoxdb · 01-03-2015, 11:32 PM

Must've been typing at same time^

**BlueBullet** · 01-03-2015, 11:34 PM

Lol yea all three answered about the same time

drivea55 · 01-03-2015, 11:37 PM

thanks guys

I will try to get that number off the frame.

**michael bustamante** · 01-04-2015, 12:13 AM

Also look to see if there is a dumple where a power steering box would cradle. If theres a dimple then its most likely a 68-70
No dimple most likely means 64-67
You have coil springs in the front right?

drivea55 · 01-04-2015, 04:58 AM

Yes
coils in the front.

Not sure dimple?

Has manual steering box no power.

Sure is a lot a work to get to the bottom of this situation.

But I appreciate all the help!

Brian

drivea55 · 01-05-2015, 12:37 AM

Couldn't find anything near the steering box. The numbers on pass. Side are;
3935802-464
5. 7. -17

I also found 464 stamped on the frame in other areas.

Not sure if it helps but here is a pic of steering box.

Thanks
Brian

**DeadheadNM** · 01-05-2015, 01:16 AM

That part number is listed on this thread here for a 68 frame: http://67-72chevytrucks.com/vboard/s...d.php?t=270463

Some GMC frames do not have VINs stamped on them...

drivea55 · 01-05-2015, 07:14 PM

thanks!

I guess it's a 68 frame then.

01-03-2015, 11:25 PM	#1
drivea55 Registered User Join Date: Oct 2009 Location: Monson,MA Posts: 503	how to detect what year chassis you have? Hey guys, I am usually over at the 47-59 section cause my cab is a 50. I was told it is sitting on a 72 chassis. I would like to buy drop spindles but am told that 71+72 are different cause the ball joints are different sizes. I have 4 wheel drum on 6 lug axles, coil springs in the rear, no leaf. What is the best way to determine the year? I did notice some numbers stamped on the pass. outer frame rail. not sure if that will help any. thanks in advance for any help in this matter. Brian __________________ current project; 1950 GMC "Junk Yard Dawg" http://67-72chevytrucks.com/vboard/s...d.php?t=635960 ___________________________________________ SOLD to "ONEBADFIVEFIVE" http://67-72chevytrucks.com/vboard/s...d.php?t=436406

01-03-2015, 11:29 PM	#2
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,479	Re: how to detect what year chassis you have? A partial VIN may be stamped atop on the LH frame rail just posterior from where the steering box is attached. That # may also be helpful - post both if possible. __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

01-03-2015, 11:31 PM	#3
BlueBullet Senior Member Join Date: Apr 2013 Location: Danvers Minnesota Posts: 967	Re: how to detect what year chassis you have? I am no expert but sounds like it would be a 67-70 frame if it is drums all around there also should be a Vin stamped in frame buy steering box on drivers side. __________________ 1972 K10 SWB wife's driver 1967 Pontiac GTO Big Bird - 1972 Longhorn K30 http://67-72chevytrucks.com/vboard/s...d.php?t=753294

01-03-2015, 11:31 PM	#4
Maddoxdb Registered User Join Date: Jun 2011 Location: Elk city ok Posts: 891	Re: how to detect what year chassis you have? I would say 63-70 being that you have 4 wheel drum and 6 lug hubs. 71-72 is 5 lug and disk brake front. Not sure how to tell exact year model but maybe somebody else will chime in.

01-03-2015, 11:32 PM	#5
Maddoxdb Registered User Join Date: Jun 2011 Location: Elk city ok Posts: 891	Re: how to detect what year chassis you have? Must've been typing at same time^

01-03-2015, 11:34 PM	#6
BlueBullet Senior Member Join Date: Apr 2013 Location: Danvers Minnesota Posts: 967	Re: how to detect what year chassis you have? Lol yea all three answered about the same time __________________ 1972 K10 SWB wife's driver 1967 Pontiac GTO Big Bird - 1972 Longhorn K30 http://67-72chevytrucks.com/vboard/s...d.php?t=753294

01-03-2015, 11:37 PM	#7
drivea55 Registered User Join Date: Oct 2009 Location: Monson,MA Posts: 503	Re: how to detect what year chassis you have? thanks guys I will try to get that number off the frame. __________________ current project; 1950 GMC "Junk Yard Dawg" http://67-72chevytrucks.com/vboard/s...d.php?t=635960 ___________________________________________ SOLD to "ONEBADFIVEFIVE" http://67-72chevytrucks.com/vboard/s...d.php?t=436406

01-04-2015, 12:13 AM	#8
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,876	Re: how to detect what year chassis you have? Also look to see if there is a dumple where a power steering box would cradle. If theres a dimple then its most likely a 68-70 No dimple most likely means 64-67 You have coil springs in the front right? __________________ 1967custom

01-04-2015, 04:58 AM	#9
drivea55 Registered User Join Date: Oct 2009 Location: Monson,MA Posts: 503	Re: how to detect what year chassis you have? Yes coils in the front. Not sure dimple? Has manual steering box no power. Sure is a lot a work to get to the bottom of this situation. But I appreciate all the help! Brian __________________ current project; 1950 GMC "Junk Yard Dawg" http://67-72chevytrucks.com/vboard/s...d.php?t=635960 ___________________________________________ SOLD to "ONEBADFIVEFIVE" http://67-72chevytrucks.com/vboard/s...d.php?t=436406

01-05-2015, 12:37 AM	#10
drivea55 Registered User Join Date: Oct 2009 Location: Monson,MA Posts: 503	Re: how to detect what year chassis you have? Couldn't find anything near the steering box. The numbers on pass. Side are; 3935802-464 5. 7. -17 I also found 464 stamped on the frame in other areas. Not sure if it helps but here is a pic of steering box. Thanks Brian Attached Images __________________ current project; 1950 GMC "Junk Yard Dawg" http://67-72chevytrucks.com/vboard/s...d.php?t=635960 ___________________________________________ SOLD to "ONEBADFIVEFIVE" http://67-72chevytrucks.com/vboard/s...d.php?t=436406

01-05-2015, 01:16 AM	#11
DeadheadNM Carpe manana Join Date: Dec 2010 Location: Eau Claire, WI Posts: 12,479	Re: how to detect what year chassis you have? That part number is listed on this thread here for a 68 frame: http://67-72chevytrucks.com/vboard/s...d.php?t=270463 Some GMC frames do not have VINs stamped on them... __________________ 1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308 Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland

01-05-2015, 07:14 PM	#12
drivea55 Registered User Join Date: Oct 2009 Location: Monson,MA Posts: 503	Re: how to detect what year chassis you have? thanks! I guess it's a 68 frame then. __________________ current project; 1950 GMC "Junk Yard Dawg" http://67-72chevytrucks.com/vboard/s...d.php?t=635960 ___________________________________________ SOLD to "ONEBADFIVEFIVE" http://67-72chevytrucks.com/vboard/s...d.php?t=436406



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.