a few questions from me, the uninformed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

66gmc · 03-23-2005, 10:55 PM

1. i have a 66 gmc its a 1500, is that a 3/4 ton or 1/2ton ?

2. does the 1/2 ton have 8 lug on the rear?

thanks in advance. TONE

Chevyboy1962 · 03-23-2005, 11:14 PM

The 1500 is a 3/4 ton.

David

66gmc · 03-23-2005, 11:19 PM

one more....what is everybodys top speed in there truck i get through 1-4 so fast cause 1 is total granny when i get to 4 i'm at 50 and 65-70 is topped out. just curiuos what yr you have and what the top speed is.?

Chevyboy1962 · 03-24-2005, 04:04 AM

I'm currently running the original 235 I6 backed by a 3 speed on the floor, with 3:90 gear ratio 10 bolt eaton posi. On the freeway(or on back roads) she flys along at 65-70mph at about 2,800-3,000rpm's. She responds pretty well, and wants to go even faster, but I don't want to push it anymore than 3,500rpm's while on the freeway.

Soon to be changing I6 & 3 speed out for a sbc350/th350 combo for more reliability, and for long runs.

David

a66c20 · 03-24-2005, 05:30 PM

I have a Chevy '66 C20, which is a 3/4 ton, it has 8 lugs all the way around. It also has a 4.10 rear gear - no fun on the freeway

, but awesome around town. I plan on going with an overdrive in the future.

Gary

kamikazegmc · 03-24-2005, 06:15 PM

not to sure what my gear ratio is, but i have a 305 v6 w/ sm-420 my top speed is about 65-70.

newbe351 · 03-25-2005, 11:56 AM

I have a "66 with the 351 V6, sm-420 and 3:54's. Just put 31" tires on it which helps, but I run it at 2500 on the freeway which is about 65 mph.

66gmc · 03-26-2005, 09:21 PM

thanks guys thats what i was looking for.

03-23-2005, 10:55 PM	#1
66gmc Registered User Join Date: Mar 2005 Posts: 10	a few questions from me, the uninformed 1. i have a 66 gmc its a 1500, is that a 3/4 ton or 1/2ton ? 2. does the 1/2 ton have 8 lug on the rear? thanks in advance. TONE

03-23-2005, 11:14 PM	#2
Chevyboy1962 C10 now is a GMC Join Date: Jun 2003 Location: Modesto, Ca Posts: 740	The 1500 is a 3/4 ton. David __________________ 1962 C10 swb fleetside, big window, custom cab 350/TH350 combo...Hot Rod 1963 C10 lwb fleetside, small window 230/4 speed...Blvd Cruiser *1931 Ford 5 window coupe (soon to be Hot Rod)... Father & Son project

03-24-2005, 04:04 AM	#4
Chevyboy1962 C10 now is a GMC Join Date: Jun 2003 Location: Modesto, Ca Posts: 740	I'm currently running the original 235 I6 backed by a 3 speed on the floor, with 3:90 gear ratio 10 bolt eaton posi. On the freeway(or on back roads) she flys along at 65-70mph at about 2,800-3,000rpm's. She responds pretty well, and wants to go even faster, but I don't want to push it anymore than 3,500rpm's while on the freeway. Soon to be changing I6 & 3 speed out for a sbc350/th350 combo for more reliability, and for long runs. David __________________ 1962 C10 swb fleetside, big window, custom cab 350/TH350 combo...Hot Rod 1963 C10 lwb fleetside, small window 230/4 speed...Blvd Cruiser *1931 Ford 5 window coupe (soon to be Hot Rod)... Father & Son project

03-24-2005, 05:30 PM	#5
a66c20 Registered User Join Date: Mar 2005 Location: Puyallup, WA Posts: 5	I have a Chevy '66 C20, which is a 3/4 ton, it has 8 lugs all the way around. It also has a 4.10 rear gear - no fun on the freeway , but awesome around town. I plan on going with an overdrive in the future. Gary __________________ 1966 C20 - Factory 327 with Edelbrock RPM heads and manifold, TH400, 4.10 rear gear 1970 Factory 455 GTO - #'s matching, 1 of 1986 produced Last edited by a66c20; 03-24-2005 at 05:31 PM. Reason: u

03-24-2005, 06:15 PM	#6
kamikazegmc Registered Smarta$$ Join Date: Mar 2004 Location: vancouver, wa Posts: 214	not to sure what my gear ratio is, but i have a 305 v6 w/ sm-420 my top speed is about 65-70. __________________ 63 GMC custom going to be slammed

03-23-2005, 11:19 PM	#3
66gmc Registered User Join Date: Mar 2005 Posts: 10	one more....what is everybodys top speed in there truck i get through 1-4 so fast cause 1 is total granny when i get to 4 i'm at 50 and 65-70 is topped out. just curiuos what yr you have and what the top speed is.?

03-25-2005, 11:56 AM	#7
newbe351 Registered User Join Date: Dec 2004 Location: West Sacramento, CA Posts: 368	I have a "66 with the 351 V6, sm-420 and 3:54's. Just put 31" tires on it which helps, but I run it at 2500 on the freeway which is about 65 mph.

03-26-2005, 09:21 PM	#8
66gmc Registered User Join Date: Mar 2005 Posts: 10	thanks guys thats what i was looking for.

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