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Do I have the wrong gears?

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Old Oct 13, 2005 | 08:22 PM
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Default Do I have the wrong gears?

I bought a new set of Zoom gears on ebay that was advertised for a GM LS1 10 bolt rear end. When I got them it said on the box:

Zoom 4.11
GM 10 bolt rear end 8.2
37 tooth ring gear
9 tooth pinion gear

I know that the 8.2 and the 7.5/7.65 rear ends are different but I thought maybe they were in a different box. When I measure the ring gear with the teeth out it comes to 8 1/8" which is very close to 8.2. But when I measure them on the back side that bolts to the differential they measure 7.5". Which is the correct measurement to go by?
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Old Oct 13, 2005 | 08:25 PM
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8.2 is the old 10 bolt from the late 60's and early 70's. The measurement you go by is across the teeth, so that is probably an 8.2.
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Old Oct 14, 2005 | 04:09 PM
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Well that about sums up how my week has been going so far. Anybody need a set of 8.2 10 bolt gears cheap?
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Old Oct 17, 2005 | 11:09 PM
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If you still have the gears, I'd be interested in buying them.
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Old Oct 18, 2005 | 12:59 PM
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You bought the wrong gears.... One of the problem with internet only sales.....

If you'd like a correct set of gears, we have them from a number of companies....
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