'96-'99 vs. '00-'03 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 10-17-2010, 09:58 PM   #1
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Default '96-'99 vs. '00-'03

Besides the obvious body style change from '99 to '00, mechanically, what all did they change? I know they didn't touch the engine, did they beef up the trannie, suspension, etc.?
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Old 10-17-2010, 10:02 PM   #2
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I just worked on an 2000 SE and it had a weird Air Pump
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Old 10-17-2010, 10:19 PM   #3
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Don't think the older ones had the air bags in the back
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Old 10-17-2010, 10:28 PM   #4
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Things are tighter under the hood. I believe they changed the passenger side engine mount from the side of the engine to the bottom. 4 wheel disk brakes on the 00+ I believe they still had drums on the back up till 99
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Old 10-17-2010, 10:38 PM   #5
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Correct. My 97 had drums in the back
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Old 10-18-2010, 08:28 AM   #6
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From a drivetrain perspective little changed.
96 Sc had the 4T60 trans
NA had the 4T60 trans til 98
The 97 4t65 has some minor differences vs 98-02
The 03 4T65 had the upgrades to valve body and 4th hub shaft

Engine wise some 2000'* had the california air pump emission stuff.
96-97 had an evap purge switch and purge valve, newer only had an evap valve.
Minor vacuum differences, nothing that made a difference though

Overall just some refinement.
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