Rearend identification
From Crankshaft Coalition Wiki
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==Introduction== | ==Introduction== | ||
There are several ways to tell what the type/size/application of a rearend. Besides visually checking and comparing rearends to one another, there are casting numbers, build codes and dates displayed or cast/stamped in various locations on the rearend and elsewhere. These all can be used to help ID a rearend. | There are several ways to tell what the type/size/application of a rearend. Besides visually checking and comparing rearends to one another, there are casting numbers, build codes and dates displayed or cast/stamped in various locations on the rearend and elsewhere. These all can be used to help ID a rearend. | ||
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==Casting numbers== | ==Casting numbers== | ||
Many if not all rear end housings will have some sort of casting number or ID cues to identify it. If the RPO decal is present (newer vehicles) or the broadcast or "build" sheet is available, it can show what was originally in the vehicle. Sometimes body/fender/cowl tags contain coded info that may list specifics on the rearend. | Many if not all rear end housings will have some sort of casting number or ID cues to identify it. If the RPO decal is present (newer vehicles) or the broadcast or "build" sheet is available, it can show what was originally in the vehicle. Sometimes body/fender/cowl tags contain coded info that may list specifics on the rearend. | ||
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==Axle codes== | ==Axle codes== | ||
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*[http://www.thecamaro.com/Decoding/Chevy-Axle-Rear-End-Decoding/ Chevrolet Rear Axle Code Identification and Decoding] from thecamaro.com | *[http://www.thecamaro.com/Decoding/Chevy-Axle-Rear-End-Decoding/ Chevrolet Rear Axle Code Identification and Decoding] from thecamaro.com | ||
*[http://www.thecamaro.com/Decoding/Chevy-Axle-Rear-End-Decoding/Chevy-Full-Size-Rear-Axle-Codes.php Chevrolet Full Size and Impala Rear End/Axle Assembly Codes] from from thecamaro.com | *[http://www.thecamaro.com/Decoding/Chevy-Axle-Rear-End-Decoding/Chevy-Full-Size-Rear-Axle-Codes.php Chevrolet Full Size and Impala Rear End/Axle Assembly Codes] from from thecamaro.com | ||
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*[http://tech.oldsgmail.com/axle_useage.php GM A-body codes] from tech.oldsgmail.com | *[http://tech.oldsgmail.com/axle_useage.php GM A-body codes] from tech.oldsgmail.com | ||
*[http://www.gnttype.org/numbers/axcodes.html Gear ratio info] from gnttype.org | *[http://www.gnttype.org/numbers/axcodes.html Gear ratio info] from gnttype.org | ||
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<td> Chevelle/Malibu: 1973 - 1973 | <td> Chevelle/Malibu: 1973 - 1973 | ||
| − | </td><td> | + | </td><td> Cutlass: 1970 - 1977 |
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The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. | The non C-clip 8.5" 10 bolt, type "C" rearend was used in some 1969-'72 Pontiac GP and 1970-'72 Monte Carlo. | ||
| − | There have been non C-clip rearends found in Chevelle wagons through at least 1974. | + | There have been non C-clip rearends found in Chevelle wagons, and some El Caminos through at least 1974. |
==12-bolt cover/10-bolt ring gear== | ==12-bolt cover/10-bolt ring gear== | ||
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