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Old 05-28-2019, 07:25 AM   #5
rpmerf
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Join Date: Feb 2011
Location: Parkville, MD
Posts: 1,024
Re: Swapping to auto

Sounds like the 700R4 is the way to go. The main thing here is you need to have the TV cable set correctly.

Automatic options:
TH350 and TH400 are 3 speeds, no overdrive.
200R4 and 700R4 are hydraulically shifted 4 speeds. 700 is stronger than the 200. I've heard the 200 can be built up, but I don't know how worth it that would be.
4L60E and 4L80E are electronically shifted 4 speed automatics. They require a computer and wiring to work. The 4L80E is popular is high powered applications.
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