do eaton 12 bolt and 8.5 rears share spider gears?

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tlowe
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Location: Dysart, Iowa

do eaton 12 bolt and 8.5 rears share spider gears?

Post by tlowe »

looking at rebuilding a 12 bolt eaton. i am having a hard time finding parts for the internals. does the eaton 8.5 share the same internals? thanks tom
1965 elcamino. inline six fuel injected/ turboed. fun to drive.
monzaz

spider gears

Post by monzaz »

Hi Tom, aftermarket maybe... but not factory. all factory 8.5 410409 and 410408 are trac lok type posi units and have totally different clutch paks and spider gears.

Eaton well now I will have to try them and get back to you.

Areas of consern. pinion shaft diameter???

Side gears might be the same but the small spider gears??? I do not know. I will check over the holidays to see. GOOD question. Like them cause I get to learn new things also.c Jim.
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