How to tell if truck is 1/2, 3/4 or 1 Ton?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

xJoey Dubsx · 01-22-2010, 10:10 PM

So me and my brother have always been under the impression the truck is a 3/4 ton, but we are trying to make 100% sure it is, since we are ordering parts for it... Any pointers of how to know size for sure?

For instance, it is a 8 lug.

MrTucker · 01-22-2010, 11:09 PM

Got a serial number?

If it's all original - 8 lugs means its at least a 3/4 ton

Got a pic?

Steve@OldSub.com · 01-22-2010, 11:27 PM

Model number helps. A GMC 3/4-ton is a 150, and GMC 1-ton would be a 250. Wheelbase is another clue. A 3/4-ton will be 125 while a 1-ton is 137. I've rashly assumed you're referring to the GMC in your signature....

mr48chev · 01-23-2010, 11:43 AM

I take it that you are talking about the 1951 GMC that is listed in your signature.

Six lug wheels indicate 1/2 ton, eight lug usually mean 3/4 ton and one tons usually have larger heavy duty rims. One ton pickups with a box had the 9-1/2 or so foot beds and most ran flat beds with dual rear wheels.

Here is a link to another website that has some info that you might be able to use http://www.oldgmctrucks.com/index.html It looks like an interesting site for anyone with an AD GMC truck.

xJoey Dubsx · 01-23-2010, 12:49 PM

It's not a long bed, and it's 8 lug, so we're right then, 3/4 Ton.. Thanks guys

xJoey Dubsx · 01-23-2010, 12:57 PM

While we're at it, since wheels are away, anyone know what pattern the 8 lug is?

MrTucker · 01-23-2010, 01:06 PM

they only made short beds in 1/2 ton...

Got a serial number??

mike16 · 01-23-2010, 05:22 PM

they did make short wheel base 3/4 and 1 ton trucks. special order and kinda rare. I cant speak for the 50s but in the early 60's they were certainly available. Cab only,no bed I 'm not sure what year your seeking info on but half ton trucks are 6 lug, 3/4 ton are 8 lug. 1 ton are also 8 lug but the frame is different. Behind the cab the 1 tones are streight back while th 3/4 ton arch over the rear axles like the half tons.

xJoey Dubsx · 01-23-2010, 08:29 PM

Looking at the picture, it is a long bed... That's a cap off of a 8' long bed 86 Silverado.

So it's 8' long, and I'll get the serial number asap

MrTucker · 01-24-2010, 01:28 PM

My money's on 3/4 ton. IIRC, 1 tons had a 9' bed...

xJoey Dubsx · 01-25-2010, 10:44 AM

Okay, that's what we were originally thinking..

Steve@OldSub.com · 01-25-2010, 05:15 PM

Quote:

Originally Posted by mike16

they did make short wheel base 3/4 and 1 ton trucks. special order and kinda rare. I cant speak for the 50s ...

I've seen reference to a short GMC 1-ton in the '47 to '54 time frame but have never seen even a picture of one.

GMC also made 1/2-tons with the longer box like a Chevy 3/4-ton.

01-22-2010, 10:10 PM	#1
xJoey Dubsx Registered User Join Date: Jan 2010 Location: Brook Park, Oh Posts: 206	How to tell if truck is 1/2, 3/4 or 1 Ton?? So me and my brother have always been under the impression the truck is a 3/4 ton, but we are trying to make 100% sure it is, since we are ordering parts for it... Any pointers of how to know size for sure? For instance, it is a 8 lug. __________________ [CENTER][FONT="Arial Black"]-------------------- Joey Dubs -------------------- 2000 Dakota - Bagged, Shaved, and more 2003 Ram - Fast, and perdy 1951 GMC Stepside - All apart, like a puzzle.

01-22-2010, 11:09 PM	#2
MrTucker Registered User Join Date: Apr 2008 Location: Denver, CO Posts: 455	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? Got a serial number? If it's all original - 8 lugs means its at least a 3/4 ton Got a pic? __________________ 1953 GMC 1/2 ton long bed Original 228 I6 with a Hydramatic Auto Tranny Project Pack Rat - http://67-72chevytrucks.com/vboard/s....php?p=3374649 Last edited by MrTucker; 01-22-2010 at 11:22 PM. Reason: had my facts wrong - I'm an idiot

01-22-2010, 11:27 PM	#3
Steve@OldSub.com Cancer Survivor in the making. Join Date: Mar 2005 Location: Bainbridge Island, WA Posts: 303	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? Model number helps. A GMC 3/4-ton is a 150, and GMC 1-ton would be a 250. Wheelbase is another clue. A 3/4-ton will be 125 while a 1-ton is 137. I've rashly assumed you're referring to the GMC in your signature....

01-23-2010, 11:43 AM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,390	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? I take it that you are talking about the 1951 GMC that is listed in your signature. Six lug wheels indicate 1/2 ton, eight lug usually mean 3/4 ton and one tons usually have larger heavy duty rims. One ton pickups with a box had the 9-1/2 or so foot beds and most ran flat beds with dual rear wheels. Here is a link to another website that has some info that you might be able to use http://www.oldgmctrucks.com/index.html It looks like an interesting site for anyone with an AD GMC truck. Last edited by mr48chev; 01-23-2010 at 12:07 PM.

01-23-2010, 12:49 PM	#5
xJoey Dubsx Registered User Join Date: Jan 2010 Location: Brook Park, Oh Posts: 206	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? It's not a long bed, and it's 8 lug, so we're right then, 3/4 Ton.. Thanks guys __________________ [CENTER][FONT="Arial Black"]-------------------- Joey Dubs -------------------- 2000 Dakota - Bagged, Shaved, and more 2003 Ram - Fast, and perdy 1951 GMC Stepside - All apart, like a puzzle.

01-23-2010, 12:57 PM	#6
xJoey Dubsx Registered User Join Date: Jan 2010 Location: Brook Park, Oh Posts: 206	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? While we're at it, since wheels are away, anyone know what pattern the 8 lug is? __________________ [CENTER][FONT="Arial Black"]-------------------- Joey Dubs -------------------- 2000 Dakota - Bagged, Shaved, and more 2003 Ram - Fast, and perdy 1951 GMC Stepside - All apart, like a puzzle.

01-23-2010, 01:06 PM	#7
MrTucker Registered User Join Date: Apr 2008 Location: Denver, CO Posts: 455	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? they only made short beds in 1/2 ton... Got a serial number?? __________________ 1953 GMC 1/2 ton long bed Original 228 I6 with a Hydramatic Auto Tranny Project Pack Rat - http://67-72chevytrucks.com/vboard/s....php?p=3374649

01-23-2010, 05:22 PM	#8
mike16 Registered User Join Date: Dec 2009 Location: bisbee, arizona Posts: 1,529	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? they did make short wheel base 3/4 and 1 ton trucks. special order and kinda rare. I cant speak for the 50s but in the early 60's they were certainly available. Cab only,no bed I 'm not sure what year your seeking info on but half ton trucks are 6 lug, 3/4 ton are 8 lug. 1 ton are also 8 lug but the frame is different. Behind the cab the 1 tones are streight back while th 3/4 ton arch over the rear axles like the half tons.

01-23-2010, 08:29 PM	#9
xJoey Dubsx Registered User Join Date: Jan 2010 Location: Brook Park, Oh Posts: 206	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? Looking at the picture, it is a long bed... That's a cap off of a 8' long bed 86 Silverado. So it's 8' long, and I'll get the serial number asap __________________ [CENTER][FONT="Arial Black"]-------------------- Joey Dubs -------------------- 2000 Dakota - Bagged, Shaved, and more 2003 Ram - Fast, and perdy 1951 GMC Stepside - All apart, like a puzzle.

01-24-2010, 01:28 PM	#10
MrTucker Registered User Join Date: Apr 2008 Location: Denver, CO Posts: 455	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? My money's on 3/4 ton. IIRC, 1 tons had a 9' bed... __________________ 1953 GMC 1/2 ton long bed Original 228 I6 with a Hydramatic Auto Tranny Project Pack Rat - http://67-72chevytrucks.com/vboard/s....php?p=3374649

01-25-2010, 10:44 AM	#11
xJoey Dubsx Registered User Join Date: Jan 2010 Location: Brook Park, Oh Posts: 206	Re: How to tell if truck is 1/2, 3/4 or 1 Ton?? Okay, that's what we were originally thinking.. __________________ [CENTER][FONT="Arial Black"]-------------------- Joey Dubs -------------------- 2000 Dakota - Bagged, Shaved, and more 2003 Ram - Fast, and perdy 1951 GMC Stepside - All apart, like a puzzle.



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