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Old 10-05-2013, 05:12 PM   #1
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Default 2000 bonnie trans question

I have a 2000 pontiac bonneville. I was told that to replace the transmission, I have to have a tranny built specifically for a 2000 bonneville. Would a 2000-2003 transmission work?
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Old 10-05-2013, 06:10 PM   #2
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2 questions. What engine, supercharged or non-supercharged?

And who/what/why told you to replace it?
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Old 10-05-2013, 06:46 PM   #3
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3800 non supercharged

it the motor and tranny has 200,000 miles...i took it about a year ago to have the trans serviced abd they did a power flush...now the tranny is acting up. So I was looking on doing a rebuild since the milage is way high..so I started looking for a trans to either replace my old one or rebuild one to change it out...this is my daily driver
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Old 10-05-2013, 06:53 PM   #4
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As a word of caution, never FLUSH a high mileage transmission. You remove most of the clutch material already suspended in the fluid.

And I don't remember if there is a difference in the 2000-2005 transmissions...junkyards might be able to tell you exactly.
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Old 10-05-2013, 07:25 PM   #5
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On the 4t65e there is two different final drive ratios I know my dad'* Buick had a 3.05 build code f83 on the build sheet. The other difference is the 97-2002 transmissions used a Holley style shift solenoid. In 03 they started using a bosh solenoid and they started using a hardened 4th gear clutch hub. So for your 2000 you need a 2002 and earlier and check the build codes for your final drive ratio.
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Old 10-06-2013, 10:25 AM   #6
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way better to have the trans rebuilt with the new updates, if you get a used trans you will just have problems again in a short period of time. shop around i had my bonneville (same trans) done for 800 plus parts and fluid ended up at under a thousand, much better deal than paying any money for junk then having to pay someone again to swap another, and another, etc. learned myself the hard way.
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Old 10-06-2013, 11:09 AM   #7
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Yep, what J said^
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Old 10-06-2013, 02:07 PM   #8
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Sounds like he was planning on having it rebuilt but he wanted to find a core that would match his car to limit down time.
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Old 10-06-2013, 02:27 PM   #9
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It might be worth your while to spend the 1300.00 bucks at the dealer to buy SERTA transmission. It comes with a 5 year warranty and you can take it to any dealer if it goes out for repair.
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Old 10-06-2013, 02:45 PM   #10
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thanks...I was looking for another core to rebuild...been quoted abt 1700.00 to rebuild.

ill check with the dealership to see about a new one...that would be better.

Is it true though that Pontiac changed the gearing in the 2000...so only a 2000 tranny would work. I though a 2000-03 would be compatible, but people ive talked to here said that the 2000 was a different tranny....I need to either rebuild my motor also ...so i thought if i got a motor and tranny i could just swap them.,...and was told the engine u could but not the tranny....makes no sense...
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