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Everything I know about 9-Bolt Rearends!

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Old 04-25-2022, 02:00 PM
  #251  
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Car: 1985 Pontiac Trans Am
Engine: 5.0 TPI
Transmission: Automatic 700R4
Re: Everything I know about 9-Bolt Rearends!

Any ideas where I can find a rubber plug for my 1985 Trans Am 9 bolt rear diff cover or an OEM cover with the plug? I am looking for stock not aftermarket. Plug

GM 10033568

Plug,Rear Axle Housing Drain
Old 04-26-2022, 11:35 AM
  #252  
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Everything I know about 9-Bolt Rearends!

As you probably already know, it's been long disc. Haven't heard of a repop yet. If you are lucky, you may find something on evilpay. More searching in Australia may turn something up since the rear was built there.
Old 08-18-2022, 01:05 PM
  #253  
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Re: Everything I know about 9-Bolt Rearends!

I've got an original Borg & Warner 9 bolt / 3.27 gear ratio with 270K miles on it. It's about to be rebuilt but locating a new replacement ring & pinion gear set of the same ratio is difficult. Worst case scenario the original ring & pinion gear set will be reused.

Does anyone know where a new 7.75 3.27 ring & pinion gear set can be purchased? I've been searching on the internet for a while and haven'f found any such except from 9Bolt.com. I've found the 3.27 ring & pinion gear set from a 10 bolt but unsure if this would be compatible in the 9 bolt that I currently have.

Any help would be greatly appreciated. Thanks

Last edited by PontiacT/A; 08-18-2022 at 01:09 PM.
Old 09-30-2022, 01:50 PM
  #254  
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Re: Everything I know about 9-Bolt Rearends!

Has anyone bought items from Just Differentials? If so, how long does it usually take before you get your items delivered to you? I purchased something from them two months ago and didn't hear anything back from them nor have I received the items I had purchased. I emailed them a few weeks after placing and paying for my order but have not received any reply from them to date. Should I wait it out longer or file a dispute with my cc?
Old 09-30-2022, 01:56 PM
  #255  
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Re: Everything I know about 9-Bolt Rearends!

Has anyone purchased items with Just Differentials on line? If so, how long did it take to receive the items that you purchased? Two months ago I made a purchase on line from Just Differentials. One month later I still hadn't received the items so I emailed them. To date, I've not received the parts I paid for or an email response back from them. Should I wait it out longer or do I need to file a dispute with my cc?
Old 10-20-2022, 02:15 PM
  #256  
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Re: Everything I know about 9-Bolt Rearends!

Just an update. Less then two weeks ago, I placed an order with JEGs for the same items that I had purchased & paid for months previously from JustDifferentials and Nitro Gear & Axle (Just Differentials). I received the item from JEG's already, less then two weeks after placing and paying for my order. JEG's came through with flying colors and I will buy from them now. As for JustDifferentials/NotroGear & Axle, I've not received the items I purchased and paid for over two months ago, haven't received any response to emails or phone messages left on their business voicemail, and have yet to talk with anyone from the company via phone call. Apparently they are no longer the caliber of vendor they once used to be.
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