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#1
03-15-2008, 06:08 PM
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Flexplate question
I know the gear is different, but are all flexplate torque converter bolt patterns the same?
 I am sticking a 200 4R behind a 389 and wanted to know before I ordered one. Wayne S
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Nothing is impossible, impractical maybe, but never impossible. 1966 Le Mans Convertible STATUS: *In Progress* 389 (sixty over)/200-4R/10 Bolt (3.08 for now) My other ride is a 71 Jeep J4000 Pick-up Truck with factory Buick 350/Th400 
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#2
03-15-2008, 07:44 PM
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Not all converter bolt holes are the same but the flexplate will have holes drilled in it in different spots to match different converters------ BOB
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#3
03-16-2008, 01:58 AM
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Also the 2004R converter is the same bolt pattern as the 700R4, 350, and original 2 speed Pontiac. I believe that all stock Pontiac flexplates were drilled for both the 400 pattern and the smaller pattern - at least they were in 1967. My 2004R bolted right up to the flexplate after taking out my T400.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress. |
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