Dieselsite 4R100 Transmission Cooler Bypass Delete Kit - 1999-2003 Ford F-Series & E-Series Vehicle Type:F-Series/Excursion The Ninth photo shows the

The Ninth photo shows the whole Base

clean upgrade for any 7

How It Works

Give your OBS a darker

Check brake hoses

Dieselsite 4R100 Transmission Cooler Bypass Delete Kit - 1999-2003 Ford F-Series & E-Series Vehicle Type:F-Series/Excursion The Ninth photo shows the4R100 Transmission Cooler Bypass Delete Full Flow Modification (19992003 Ford) If youre upgrading your transmission cooling system, deleting the factory cooler bypass tube is only half the fix. This modification allows 100% transmission fluid flow to the cooler, eliminating one of the most overlooked restrictions in the 4R100 automatic transmission. Why Remove the Factory Bypass Tube? From 19992003, Ford equipped the 4R100 transmission with an