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Discussion Starter · #1 ·
1964 300 or Malibu 4dr w a 6 /PG and would a 200R4 give up any milage gains to the PG? figuring a 3:something ratio.
 

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With the low torque of a 6 cylinder the lower first gear of the 200R4 would help it. I would go with 3.70's.

Dave
The 6 cyl doesn't turn a lot of RPM or make a lot of horsepower but it has low RPM torque so should pull the overdrive well.

It probably came with a 3.08, possibly a 3.31.

Install the OD transmission and change the rear gear only if you need to.

Verle
 
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