#1  
Old 07-09-2020, 09:13 AM
421/376 421/376 is offline
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Default WTB Ring and Pinion

Hi , I am looking for a 3.23 ring and pinion for a 8.2 10 bolt BOP differential . New or good used would be OK . Thanks . Don

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Old 07-09-2020, 09:47 AM
rt400 rt400 is offline
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Default WTB Ring and Pinion

You won't find a new one. I found a used one on E bay for $200.00 that was in really nice condition. You will need to find a used one. Good luck.

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Old 07-09-2020, 10:37 AM
421/376 421/376 is offline
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Thanks for the info . That is the same thing that I am running in to . I have the correct posi carrier that takes a 3.23 and I would like to upgrade from my current 3.08 .The other choice that I would have would be to go with a 3.36 but that would require getting a different carrier and gear set . I'd rather not go that route. Thanks again for your help . Don

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Old 07-09-2020, 02:18 PM
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The Champ The Champ is offline
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Don

I don't know what your goals are for this vehicle, but swapping for a 3.08 to a 3.23 will be less than 5% change - you probably won't even notice the difference once you spend the money and time to do the gear swap for street driving.

I originally had 3.23's in my GTO (no posi), found a 3.36 (posi) rear and installed that. When the 8.2 rear went south I replaced it with a 12 bolt with 3.42's and a few years ago replaced the 3.42's for a set of 3.08's as I've been spending more time driving longer distances at highway speed. I felt no difference in perceived acceleration going from 3.23's to 3.36 to 3.42 in street driving. There was a small difference going from 3.42's to 3.08's, but well I had the 3.42's in I also swapped from the original 389 to a 455 - so have plenty of torque to handle the change in gears.

It's your car and your money, do what you want.

  #5  
Old 07-09-2020, 02:47 PM
'ol Pinion head 'ol Pinion head is offline
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Quote:
Originally Posted by 421/376 View Post
Thanks for the info . That is the same thing that I am running in to . I have the correct posi carrier that takes a 3.23 and I would like to upgrade from my current 3.08 .The other choice that I would have would be to go with a 3.36 but that would require getting a different carrier and gear set . I'd rather not go that route. Thanks again for your help . Don
Don, I may have another nice set of 3.23 early 8.2 Pontiac gears, have sold over half a dozen sets to PY members & have been hauling in core rearends that I had stored. 10 days ago finished another housing rack for the select housings I stock to rebuild. May also have a set of nice 3.23 LATE 8.2 PONTIAC 10 bolt ring & pinion in a longtime 71 GP parts car that I'm about to process & cut up for killer condition sheetmetal. I need to ck that rear, it will be next week. First, would be real helpful to know what model year of Pontiac 8.2 rear you are about to have work on.

The late Pontiac 8.2 gear sets began showing up in late '69 production, their ring gear bolts are LH thread & 1/16" larger diam threads. It is easiest if you get the correct Pontiac 8.2 gearset, versus having to have an early Pontiac 8.2's carrier's ring gear mtg flange holes opened up to mate with the late style Pontiac 8.2 ring gear, or have to install thin brass bushings in the ring gear mounting flange of a later 8.2 PONTIAC carrier to use the early ring & pinion. Have had to do both in previous builds.

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  #6  
Old 07-09-2020, 02:48 PM
421/376 421/376 is offline
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Hi Champ , I'm running a 66 Tempest conv't with an OHC Sprint engine and a HD 3 Speed stick . My goal is to make it a little easier on the clutch when starting from a standstill going up hills without sacrificing too much gas mileage, We live in the mountain side of VA , so we're either fighting with the hills or cruising the interstate at 75 MPH . Thanks for your reply and advice . Don

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Old 07-11-2020, 11:12 AM
421/376 421/376 is offline
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Hi 'Ol Pinion head . I apologize for the delay in returning your post . It is for a 66 BOP 8.2 with 3/8 " bolts . Thanks Don

  #8  
Old 07-11-2020, 01:14 PM
421/376 421/376 is offline
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Update : The search is over . I found one . Thank s to everyone for looking . Don

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