#1  
Old 10-29-2019, 05:49 PM
JeffInVA JeffInVA is offline
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Default WTB: 69 Grand Prix complete posi rear

Looking for a complete posi rear for a 1969 Grand Prix. Prefer higher ratios like 3.08 or 3.23.

A little background if you are interested: I just inherited my Dad's unfinished 1969 GP when he passed away recently. It's a pretty cool car - PHS documented 428HO 4 speed. Almost done, but not quite there yet, and not currently running. But not sure what he was thinking with the rear end. It appears to be an earlier piece (1965?) and my brother thinks he put 3.90 gears in it, which I would not prefer. I need to crack it open and take a look, but in the meantime, I thought I would see if someone had a more correct one. If so, I would just swap it out and sell the current one.

Thanks!

  #2  
Old 11-02-2019, 06:55 PM
poncho-mike poncho-mike is offline
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I always liked finding GPs with limited slip units. While the A-bodies with 3.08 and 3.23 10-bolt limited slips were 2-pinion limited slip units, the GP came with 4-pinion units. GP rears are easy to identify, the 69s had a flat spot on the top (for the exhaust maybe?). Anyway, they are good rear ends.

If your 4-spd had a/c, it should have come with a 3.23 limited slip. I junked a 69 SJ 4-spd out many years ago, still have the block and might have the rear end. I'll check next time I'm at my storage location.

Mike

  #3  
Old 11-03-2019, 09:30 AM
JeffInVA JeffInVA is offline
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That would be great - thanks!

  #4  
Old 11-03-2019, 03:12 PM
428ho4spd's Avatar
428ho4spd 428ho4spd is offline
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WOW... that's a cool GP! Would be interested in seeing the PHS invoice to add to my personal registry. Also, we could determine which rear it came with originally if you'd like to keep the car correct.

  #5  
Old 11-20-2019, 12:30 AM
hawkins69 hawkins69 is offline
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Very cool car! What colors and options are on the car. I love these cars and I too have a 428 HO 4speed!

  #6  
Old 11-24-2019, 12:49 PM
newmexguy newmexguy is offline
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Default Ohio based rear end specialists

Two individuals you might try are
Brian Trick
Jim Monzaz
Both are on the buick V8 site and seem to be active and knowable about BOP rear ends.

  #7  
Old 08-12-2020, 10:40 AM
JeffInVA JeffInVA is offline
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Bumping this back up, as I am still looking.

I pulled the rear our of the car today and it appears to be a 1965 GTO rear housing and it has 3.90 gears. Before I start going through this one, I wanted to see if anyone has a correct 69 GP one (prefer 3.55 which is what I think came with the car)

  #8  
Old 08-12-2020, 04:22 PM
389 389 is offline
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That's one of Pontiac best ever!!!

  #9  
Old 02-27-2021, 01:39 AM
poncho4284spd poncho4284spd is offline
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just a fyi

http://www.ronspontiacpage.com/refer...more%20rows%20

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