I have had mine in for a few days now. So far no down side, no abnormal behavior. pre revving downshifts is much better and more consistent. Maybe a small improvement in midrange. really noticeable in the upper RPM. I am happy with this mod.
can't wait to hear your initial thoughts, see the numbers and find out what you think of the sound. I just ordered the larger throttle body and am thinking these could be a nice next mod.
please see these threads:
https://www.mustang6g.com/forums/threads/gear-change-from-3-73-rear-gear-to-4-11-in-my-gt350.96590/
https://www.mustang6g.com/forums/threads/gear-change-from-4-11-rear-gear-to-4-56-in-my-gt350.104766/
If you do a search on this GT350 forum a chart is posted. It's not all that much of a drop. It could affect shift points on a track (+,-) but for the street it is much better
Thank you for posting this. On mine, if I am in 3rd on and off the throttle very lightly and then bring it to the floor it will occasionally barley accelerate. If I lift and bring my foot back done it clears up. Wonder if I am starting to have this issue.
I finally got the 4.11 rear end in mine. The car should have been this way from the factory. It is a LOT of fun with out being to revy. It is a fine DD. Although I only drive mine in the summer and take something else if it is going to be too nasty out. FYI, I put Signature wheels on dropping...