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: 12,446	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: 7,862	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: 12,446	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

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.