6th Gear Poster
Join Date: Jun 2003
Location: Millbrook, Alabama
I would imagine it would, at the very least, make the shudder better. In my case, it eliminated it completely...just with a filter change and regular Mercon III fluid. That was before I knew better. Make sure you use Mercon V synthetic fluid. Ford recommends it because it can take the heat better. A tranny cooler will prolong the life of the fluid and preserve the lubricating properties longer.
It is really recommended that you change the 1-2 accumulator piston and springs (if desired) as a preventative measure. It is a new, revised design. The original pistons can cause damage to the accumulator bore and the springs are known to break.
When I changed mine there was no damage (167,000+ miles), and I drove it pretty hard. The parts are relatively cheap too....
See the technical article in the tranny section under Jerry's Mod. You could do the whole modification, but since it's your sister's car, the only thing that might be appropriate is the 1-2 accumulator. Pay attention to that section...and you don't have to drop the valve body to do this one....just remove the pan. That's why it's recommended to do it at a filter change....
Hope this helps....
Glen "RustyUL" Weldon
94 Thunderbird SC - 5 Speed -- Picture Here
1 of 722 1994 SC 5-speeds made.
Soilid Engine Mounts, B&M Ripper Shifter, Tokico Shocks
95 Thunderbird LX - 4.6