Could that be why specials have bigger c-v joints and stronger axles?
Are not the gears different in a special,would that matter to the pcm?
ya the special has the 3.89 gears i believe but Ross was saying it wont really matter. Like its more of an acceleration issue but not really one that would mechanically affect the feel of the shifts.
I put it back in after driving one day with the sxt one and i noticed that its a clear difference in the shifts, they are very high compared to the sxt. The 1-2 gear shift doesnt seem to be as rough now or as abrupt rather. I noticed its usually if you are approaching a stop and you accelerate to the legal speed quickly and then begin to brake, it will brutally pull out of 2nd gear and go into first, meanwhile it feels like the motor is falling out of the car. Thats why in those areas i just use autostick or drive very slowly. The SXT pcm doesnt do this because it starts downshifting when the car is basically stopped. That downshift usually freaked me out.
One strange thing i found tho is that if you start accelerating very slowly then it will shift low in the 2000 mark. But if you accelerate really sharply and then level off, it will want to keep on going.
So if i just gently press the pedal it will shift very close to the sxt pcm.
The sxt feels the same in A/S from what i could tell, its just the crazy downshifting the special one exhibits.
Another strange thing was that the sxt one would not take the revs in D beyond 4.5 k or maybe 5, whereas the special hit close to 6000 when i floored it. So the sxt/normal pcm likes to keep the revs low and is always in high gear. Meanwhile the special is usually in the 2nd highest gear and is ready to downshift immediately.
I think i kind of figured it out now after the swap.
BTW, I will probably get the gears installed soon to fix the speed reading issue just as soon as Ross' back gets better.
Thanks for the input.