Quick check on 97 Transmission - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 06-25-2006, 12:01 AM   #1
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Default Quick check on 97 Transmission

Does the 97 Bonneville SE have the 4t65-e or 4t60-e transmission?

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Old 06-25-2006, 12:02 AM   #2
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60-e
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Old 06-25-2006, 12:07 AM   #3
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The 65 didn't come out in NA til 98'. 97 was the first year for the 65 in the */C'd h-bodies.
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Old 06-25-2006, 01:03 PM   #4
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Quote:
Originally Posted by fantastic88
The 65 didn't come out in NA til 98'. 97 was the first year for the 65 in the */C'd h-bodies.
Yes correct

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Old 06-25-2006, 01:10 PM   #5
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Default Re: Quick check on 97 Transmission

Quote:
Originally Posted by CrimsonBane
Does the 97 Bonneville SE have the 4t65-e or 4t60-e transmission?

Thanks,
Crim
And for the most part, the 60 will give you many more trouble-free miles than the 65.
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Old 06-25-2006, 01:18 PM   #6
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True Will...

Some may not agree with that, but with the miles the 60'* are pulling down before failure... I have been impressed with the 60-E'* for a long time... And thats compared to the Dodge and Ford FWD transmissions...

I saw a 60-E in a Venture I think it was, 170K on it and it still shifted great.... At 200k the Reverse went out... Got another trans for it...

But again, the 97 NA'd models used the 60-E, while the SC'd models used the 65-E

98+ they were all 65-E'*

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Old 06-25-2006, 01:24 PM   #7
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We have a couple 60'* here well ove 200k on original trannies.

Most of what you and I have seen here shows that the 60 will generally give 30% or more miles before the first failure when compared to the 65.

And the 65 is alot more likely to have 'minor' issues under 60k.
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Old 06-26-2006, 09:43 AM   #8
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While I disagree about the trans failure rate, I also lack the data to back up my suspicions of more power and more mods being contributing factors in skewing the data used above to mention the earlier failures of the 65.

Any trans has the ability to fail with more power than engineered to handle.
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Old 06-26-2006, 09:54 AM   #9
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Bill, Don and I have been quietly collecting data on transmission failures here for over 3 years. My trans shop guru completely backs up my conclusions 100%. Most of the cars we watch and learn from are unmodified.

Regardless of age, 4T65E'* are 3 times as likely to be in the shop at any given time when compared to 4T60'*. Coincidentally, when my SSEi was in the shop, there were 3 other H bodies with failed 65'*, and each had half the miles mine had on it at the time.
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Old 06-26-2006, 10:01 AM   #10
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As mentioned...my opinion w/o data to back it up.

Meanwhile...I'm driving my 65 like Travis to help change those stats in the 65'* favor ... might take a while though.

Til then..enjoy the fact that lower power equals less failures
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