Quick Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

daxloves · 03-17-2010, 12:44 AM

Am I correct to assume that a '78 sierra classic 15 sub is 1/2 ton? I dont know what # on them means 1/2 or 3/4 ton.

**Captainfab** · 03-17-2010, 01:14 AM

Yes that is a 1/2 ton. The GMC's used the 15 to designate a 1/2 ton and 25 for the 3/4 ton whereas Chevy used the 10 and 20

daxloves · 03-17-2010, 01:37 AM

OK, thanks.
So if i got it correct then
1000, 10 and 15 are 1/2 ton
1500, 20 and 25 are 3/4 ton

Well, now I know that my local yard has no 3/4 ton cross-members. Only thing they got not 1/2 ton is 4x4's

Is having a 1/2 ton front going to reduce my load capability's much? Are there any real major strength differences?

**Captainfab** · 03-17-2010, 11:57 PM

From what I've read of how you use your truck as a truck I would stay with the 3/4 ton front suspension. You might have to make a trip down to Spokane to Pull and Save to pick up a 3/4 ton front suspension.

daxloves · 03-18-2010, 12:57 AM

Thats what I was thinking. afterall, I really do want to keep it 8 lug all round so I can have a spare thats not drilled for 8/6 or 8/5. I had a 8/6 I drilled for a spare but it dissapeard

First I'll check around here with all the ppl that have a field full of old cars and trucks.

Captainfab, Just noticed where your at. Only about a 100 miles away

03-17-2010, 12:44 AM	#1
daxloves Registered User Join Date: Mar 2010 Location: Kettle Falls WA Posts: 48	Quick Question Am I correct to assume that a '78 sierra classic 15 sub is 1/2 ton? I dont know what # on them means 1/2 or 3/4 ton.

03-17-2010, 01:14 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Quick Question Yes that is a 1/2 ton. The GMC's used the 15 to designate a 1/2 ton and 25 for the 3/4 ton whereas Chevy used the 10 and 20 __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

03-17-2010, 01:37 AM	#3
daxloves Registered User Join Date: Mar 2010 Location: Kettle Falls WA Posts: 48	Re: Quick Question OK, thanks. So if i got it correct then 1000, 10 and 15 are 1/2 ton 1500, 20 and 25 are 3/4 ton Well, now I know that my local yard has no 3/4 ton cross-members. Only thing they got not 1/2 ton is 4x4's Is having a 1/2 ton front going to reduce my load capability's much? Are there any real major strength differences?

03-17-2010, 11:57 PM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Quick Question From what I've read of how you use your truck as a truck I would stay with the 3/4 ton front suspension. You might have to make a trip down to Spokane to Pull and Save to pick up a 3/4 ton front suspension. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

03-18-2010, 12:57 AM	#5
daxloves Registered User Join Date: Mar 2010 Location: Kettle Falls WA Posts: 48	Re: Quick Question Thats what I was thinking. afterall, I really do want to keep it 8 lug all round so I can have a spare thats not drilled for 8/6 or 8/5. I had a 8/6 I drilled for a spare but it dissapeard First I'll check around here with all the ppl that have a field full of old cars and trucks. Captainfab, Just noticed where your at. Only about a 100 miles away



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