Re: TH400 to 700r4 Swap questions
With a th400 you would know if it was not getting to 3rd gear. The rpm's it would take to get it up to 55 would be very noticable.
I am swaping to a 700r4 as well. I have already had it rebuilt and it is sitting in my garage waiting for me to get off my butt and put it in.
You will need to have the drive shaft shortened and balanced. Also you will need a new crossmember that fits the 700 (this is an over the counter type purchaces, the 700r4 is a very common swap). Also a o/d shifter on your steering wheel. several more odds and ends
I agree with nova, the 3.08 gear is more of a car gear, the 700 has a lower 1st gear and the rest are higher. The 700/3.08 combo will only make your loss of power at freeway speeds worse. You'll get great gas mileage but you will sacrafice passing giddyup.
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