Tranny interchangeability - Page 4 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-26-2004, 05:58 PM   #31
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Quote:
Originally Posted by ssesc93
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Originally Posted by LakevilleSSEi
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Originally Posted by 1993 SLE
you are right. I believe that most/all NA cars have the 3.06, there are exceptions but for arguments sake NA=3.06. Now the SSEi with the HD version has the 2.84. I know for a fact that Buicks and Olds have different trans options, I believe that the buick and the olds have a option for a 2.84 and a 3.33 ratio on a NA application
Different options how??? My trans I just put in this year came out of a Park Ave? Works just fine?

Will: If you put in a trans with the wrong final drive ratio, the trans won't shift cvorrectly because of the PCM???? Correct??

Now would you be able to Swap PCM'* or chips or whatever from the same vehicle that you got the different tranny from, would it shift correctly and work? Or be a waste of time?

For?????

Was it the Park Av Ultra?
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Old 12-26-2004, 07:51 PM   #32
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Well, I just got back from a drive. I am very worried. My HUD works, it now will shift into first, but RPMS seem to stay at 5k and it doesnt pull hard at all, then second it pulls really hard like usual. I hope my transmission is not going out already!!!!
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Old 12-26-2004, 07:52 PM   #33
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And yes, I was told that it was the Ultra, the receipt says it too. Is there any way I can check the tranny though to see if it is really the HD version or not?
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Old 12-26-2004, 08:46 PM   #34
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There are no external markings dictating HD. The only way to know on a 4T60E is by the final drive ratio. If it'* 2.97, it'* HD.
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Old 12-27-2004, 03:23 AM   #35
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How will I know my final drive ratio? Alright here is a way. Willwren, what RPM is your car at at 50mph with the torque converter locked?
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Old 12-28-2004, 02:13 PM   #36
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Alright, anyone else wanna help out and tell me what rpm your car is at when your torque converter is locked at 50 mph? If you had an L67 that would be most helpful.
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Old 12-28-2004, 02:20 PM   #37
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Quote:
If it'* 2.97, it'* HD
Not nessesarly. The 93 Olds 88 LSS all came with the 2.97 gearing and none were */C. Both non */C and */C Touring Sedans had the 2.97, however, the */C had the HD version. I believe that 92-95 3800 Regals also had the 2.97.
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Old 12-30-2004, 02:13 AM   #38
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Alright, well mine came out of a Park Avenue. Thanks, that is what mine is at, my problems seem to be going away.
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