1963 GMC what rear end? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

neto · 04-15-2011, 01:42 PM

It's a 1963 GMC suburban with the 305. What rear end do I have? What gear ratio? One wheel turn equaled about 3 1/2 drive line turns. I have to replace the right rear bearing and all the brakes.
Thanks.

64fleetside · 04-15-2011, 01:52 PM

its a dana axle, prolly 3.54 ratio IIRC

neto · 04-15-2011, 10:10 PM

Thank you. I found the tag under some caked on dirt. It is a 3.54. Bearing is shot.

**Captainfab** · 04-16-2011, 12:33 AM

Is your truck a 3/4 ton? Typically the 1/2 ton GMC's had Dana 44's and the 3/4 tons had Dana 60's. By looking at this pic at the area circled, it is a Dana 60......and yes the Dana axles were available with 3.54 gears.

neto · 04-17-2011, 12:12 AM

It's a half ton. Suburban but not sure if maybe the rear end was changed. The other question I have is the little light turn signals on the hood. They look original but don't know if they are. Have to do more research.

neto · 04-17-2011, 06:16 PM

These is the bearing and a ring that's goes after the bearing. Do these axles have this grove like area? The bearing wasn't bad it was just riding on the grove area.
Thanks.

04-15-2011, 01:42 PM	#1
neto Registered User Join Date: Jan 2007 Location: Madera, California Posts: 291	1963 GMC what rear end? It's a 1963 GMC suburban with the 305. What rear end do I have? What gear ratio? One wheel turn equaled about 3 1/2 drive line turns. I have to replace the right rear bearing and all the brakes. Thanks. Attached Images

04-15-2011, 01:52 PM	#2
64fleetside Registered User Join Date: Apr 2004 Location: arkieland Posts: 1,070	Re: 1963 GMC what rear end? its a dana axle, prolly 3.54 ratio IIRC

04-15-2011, 10:10 PM	#3
neto Registered User Join Date: Jan 2007 Location: Madera, California Posts: 291	Re: 1963 GMC what rear end? Thank you. I found the tag under some caked on dirt. It is a 3.54. Bearing is shot.

04-16-2011, 12:33 AM	#4
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: 1963 GMC what rear end? Is your truck a 3/4 ton? Typically the 1/2 ton GMC's had Dana 44's and the 3/4 tons had Dana 60's. By looking at this pic at the area circled, it is a Dana 60......and yes the Dana axles were available with 3.54 gears. Attached Images __________________ 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

04-17-2011, 12:12 AM	#5
neto Registered User Join Date: Jan 2007 Location: Madera, California Posts: 291	Re: 1963 GMC what rear end? It's a half ton. Suburban but not sure if maybe the rear end was changed. The other question I have is the little light turn signals on the hood. They look original but don't know if they are. Have to do more research.

04-17-2011, 06:16 PM	#6
neto Registered User Join Date: Jan 2007 Location: Madera, California Posts: 291	Re: 1963 GMC what rear end? These is the bearing and a ring that's goes after the bearing. Do these axles have this grove like area? The bearing wasn't bad it was just riding on the grove area. Thanks. Attached Images

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