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Jeff Chambers · 02-26-2005, 08:04 AM

There is a special tool made for changing the TFI. Its a standard socket size (4mm?) but has a reduced outer diameter to fit in those little holes on the module. You can also grind down a 1/4" drive sock to get in there if you don't have any other choices. Most parts stores carry the TFI socket though.

02-26-2005, 08:04 AM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: TFI module replacement There is a special tool made for changing the TFI. Its a standard socket size (4mm?) but has a reduced outer diameter to fit in those little holes on the module. You can also grind down a 1/4" drive sock to get in there if you don't have any other choices. Most parts stores carry the TFI socket though. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"