Quote:
Originally Posted by 'ol Pinion head
When you drain the r/e grease (80/90 w small bottle of GM or Ford Limited Slip additive), take a look at the posi carrier... might post a pic showIng a partial view of the passenger side end of the posi carrier. For many years, several of us rebuilt this style rear with the later & more common #8 or #9 c-clip side gear Limited Slip carriers, and properly rebuilt, set them up with a nice used or new ring & pinion in the bolt-in axle 8.5 rears. The original style "S" spring 8.5 posi carriers for bolt-in axle use aren't nearly as common, as the c-clip version, & its possible your rear began life life most as single track rear, & was assembled at some time with a posi carrier. Need a nice used cutout style cover, feel free and drop me a PM, should be able to grab one.
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Here are some shots of the rear differential, a tooth count shows this to be a 3.23 final drive ratio.
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1964 Catalina 2+2 4sp, 421 Tri-power
1965 GTO, Roadster Shop chassis, 461, Old Faithful cam, KRE heads 305 CFM,
Holley EFI, DIS ignition.
1969 GTO 467, Edelbrock 325 CFM, Terminator EFI
1969 Firebird Convertible
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