I found this in a post that someone else had, but that kinda got whored up by people who were argueing about whoring up posts. how bad exactly would it be for my car, and does it really work that well? (note: I have a 1998 sixer with an auto)

-edit-
****. I was writing that post at like 2:00 AM, and obviously wasn't very consious.

 

well the D2D is for autos. it firms up the shift quite a bit when launching.

 

why u asking u have a manual

but im not sure i have heard its much better

 

there is a difference, slightly. if u let the tranny shift by itself its sluggish. if you do this it firms it up and seems like it shifts faster than letting it go by itself.

but only worry about it if you have an auto.....

 

You can get the same effect doing a 1-2-D. I prefer to do it that way b/c you can push first gear a little farther.

 

somewhat, i used to do the same, but try out the d2d. shift right at redline and ull notice a small difference, instead of the 12d

 

no the 1-2-D just runs through the gears manually. it does not firm up the 1-2 shift. the D-2 shift for the 1st to 2nd shift is a programmed function in the ecu to increase line pressure to provide quicker shifting on the 1-2 shift. ford did this even on the old AOD Fox's but not electronic of course. this was meant to give a smooth shifting trans for everyday driving and the ability to get alittle better 1-2 shift for the occasional track use

my procharged 98 ( before the shift kit) and my stock 99GT will break the tires loose with the D-2 shift.

it shouldn't be done all the time just to be on the safe side. but for track use the D-2-D should be used for the best times and no powerbreaking with the stock converter. all you do is heat up the trans by powerbreaking with the stock converter. it's best to just stay at the line at idle RPM and mash the accelerator to launch then the D-2 for the 1-2 shift, run 2nd to about 4800rpm's and back up into drive

 

somewhat, i used to do the same, but try out the d2d. shift right at redline and ull notice a small difference, instead of the 12d

 

I can chirp 2nd doing a 1-2-D shift. I don't know how much firmer the shift could possibly get but I'll give it a try.

 

how about D then about 45 shift it into D2 it kinda gives u better accleration or is it just my 1/4 tank of gas ? lol