3.42 O gears I have 2 sets of brand new Olds 12 bolt gears!

Old June 25th, 2014, 07:46 AM
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3.42 O gears I have 2 sets of brand new Olds 12 bolt gears!

I have 2 sets of BRAND NEW in the BOX Oldsmobile 12 BOLT 'O' type 8.5 diameter gears !!!

Anyone interested?

Look in the for sale forum
or PM me

Jim
J D
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Old June 25th, 2014, 10:56 AM
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GM or aftermarket? Specifically, which carrier do they fit?
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Old June 30th, 2014, 08:21 AM
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Are you saying 12 bolt cover and 10 bolt ring gear, or 12 bolt ring?
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Old June 30th, 2014, 09:35 AM
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Originally Posted by 442Harv View Post
Are you saying 12 bolt cover and 10 bolt ring gear, or 12 bolt ring?
Type O is the ten bolt 8.5" ring gear. There is no such thing as an 8.5" ring gear with 12 bolts. The Chevy 12 bolt ring gears are 8.875".
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Old July 5th, 2014, 05:05 PM
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12 BOLT OLDS 'o' tYPE

THIS IS A Oldsmobile site CORRECT?

Gear has been missing for about 3 years now.

12 bolt cover, 10 bolt ring, BOLT IN AXLES is a 12 bolt 'O' type OLDSMOBILE Differential.

12 bolt cover and 12 bolt ring and C-clip axles is always a Chevy rear Differential ...Even if it originally came in a Oldsmobile it is a CHEVY rear.

These gears are for the 12 bolt cover 10 bolt ring 8.5 diameter.
These Richmond gears fit the 3 series carrier (3.08 3.23 carrier)
This is the way Richmond made the 3.42 and 3.90 gears for the 12 'o' type rear.
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Old August 5th, 2014, 09:29 PM
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Do u still have the 3:42 gears

Chris 314-495-1700
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Old August 7th, 2014, 11:12 AM
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Is this a posi unit?
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