Derrick Schultz Posted September 8, 2014 Report Share Posted September 8, 2014 hi everyone my name is derrick and i have a 2000 buick park avenue with a 3.8 and i guess a 4t65e transmission, will a transmission from a 97-2004 pontiac montana work for it? i know i read something about the gear ratios might be different can someone please help!! thanks in advance guys Quote Link to comment Share on other sites More sharing options...
Nas Escobar Posted September 9, 2014 Report Share Posted September 9, 2014 The Park Ave is an H body IIRC. Anyways, the trans are different, you have to pull them out of another H body like the Bonneville or 88,. The reason you can't just swap trans is because each gear ratio for all gears are different. Quote Link to comment Share on other sites More sharing options...
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