700R4 Speedo Issue

[Matt69olds]

The terminator controller is what everyone recommends, it’s the next step up. The Dominator setup is the top of the line, with the top of the line price tag.

 

[Bennyt]

I need to change the speedometer gears in my CC w/ a 700r4. Anyone know of a reference manual so I can figure out which ratios to buy? There is like 5-8 of each gear and 2 different bullets and I believe you can mix and match to achieve most tire sizes/ gear ratios.

Right now, my truck has a leaky speedometer corrector on it but I rather remove it and put the correct gears in the tailshaft. I assume the trans probably came out of a car and then needed the adapter to calibrate to taller truck tires and lower gears.

 

[Matt69olds]

TCI Auto Speedometer Gear Calculator - TCI® Auto

Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. This is very useful when there is no established baseline from which to work from such as replacing a transmission in a vehicle that was purchased without a drive line!

www.tciauto.com