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| | | | Joined: Jan 2008 Posts: 85 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 85 | Well over the weekend I found a spare rearend for my 1 ton,I think it is a 1 ton rear(5.11).But what I'd like to know is if there are any numbers I can look at on it to see if it's a 4.56 (3\4 ton)rear?I tried to turn it but I think both brakes are stuck.And if it is a 4.56 and I want to change my gearing can I put the gears from it in my 1 to axle? | | | | | Joined: Aug 2004 Posts: 1,417 ODSS Lawman | | ODSS Lawman Joined: Aug 2004 Posts: 1,417 | If the 4.56 gears are the same dimensions as the 5.11 then yes. I am just not sure if things got bigger on 3/4 to one ton trucks.
SWEET Sergeant At Arms: Old Dominion Stovebolt Society BUNS?!?!?!Where we're going, we don't need no buns.....1950 GMC 450 1951 Chevy 1/2-TonThe GreenMachineIn the Stovebolt Gallery | | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | The center chunks will swap. There's a cole of ways to fing the ratio. 1 is to find the serial numbers and decode them, another would be to pull the rear cover and count the teeth on the ring and pinion gears, a third way would be to find the stamped numbers on the ring gear. One more way, since the brakes are stuck, would be to pull the cover and the shafts out of the axle (easily done on a full floater) and turn the pinion and cound the number of turns to 1 turn of the ring gear.
Bill Burmeister
| | | | | Joined: Oct 2003 Posts: 5,152 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Oct 2003 Posts: 5,152 | Actually in at least some years the deeper gears (5.14) were an option in the 3/4-ton trucks, so finding a 3/4-ton rear is not a guaruntee of the 4.56 gears.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble... | | | | | Joined: Jan 2008 Posts: 85 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 85 | Thanks,I'll have to look at it closer when I get it home.For $30 I thought it was worth a shot,if nothing else I'll have some spare parts. | | |
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