C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

4+3 trans

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Old Sep 10, 2004 | 05:30 PM
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Default 4+3 trans

i heard that 4+3 transmisions didn't last too long os that true or are they ok
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Old Sep 10, 2004 | 05:51 PM
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A long time or a lot of miles???
I have not problems with my '88, but its low miles
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Old Sep 10, 2004 | 06:05 PM
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Depends on the year. My '87 went 166k miles before I snapped 2 or 3 teeth off of the cluster gear from too much abuse.
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Old Sep 10, 2004 | 07:35 PM
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Originally Posted by canon1414
i heard that 4+3 transmisions didn't last too long os that true or are they ok

The earlier years were more problematic...they worked out the bugs as they went on in later installs...my 84 4+3 went out with 47K miles on the clock...could have been lack of driving on the first owners part...but nonetheless- it went (carrier bearing) If you keep the fluid changed with a filter at regular intervals, it should last a good time...as with most mechanical things...proper care usually benefits in the long run!

Cheers!
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