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Old 05-25-2016, 01:18 PM   #12
71meangreenc10
Its a Truck Thing......
 
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Join Date: Dec 2004
Location: Sierra Vista, Arizona
Posts: 3,179
Re: 400 Turbo to 700R install

You will need a new yoke for the driveshaft, 400's are bigger. I used PATC to get all the parts for the speedometer. Since you are running 3.73's they should have both gears you need. They have the calculator on their site also.

If you are going to tow, I suggest adding in another trans cooler in addition to the one in the radiator.

The lock up is up to you, I added a switch and also used the correct brake light switch.

I am running 3.42 and 275-60-15's.

Shoot me a PM if you need any further info.

https://transmissioncenter.net/

Smitty
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