Thrasher shift kit

Hi
Any of u guyz have the shift kit on ur car? Which setup is the best? is the max firmness too anoying?

I went with the mid firmness, won't chirp my tires and won't be overly noticeable, but can feel a real shift. No more rpm fluctuation duiring a shift.

I had the kit on max. Dont really know what setting it is at now as the last trans shop moddified it.

But I chirp tires on the 1-2 shift all the time

Been emailing Thrasher for two weeks, trying to get some information on their shift kits. Have never heard back from them. Do you have an site that list their kits. Can't find it on their normal site. Thanks

well I bought mine from 3800performance.com but there should be a site for thrasher themselves.

Thanks, I heard with that kit you need the buy the springs from GM for 1st and 2nd. Or better springs?
Kit has been ordered, will check on springs. Thanks again

I actually got my kit off of ebay for $30. The guy always has them on there. I thought it was rediculous that they charge $80+ for 4 springs and some brass spacer bushings.

Thanks, I heard with that kit you need the buy the springs from GM for 1st and 2nd. Or better springs?
Kit has been ordered, will check on springs. Thanks again


I know some people use additional gm springs but u don't have to have them.

Thanks, that will save some money. If I put any more money into this car, I'll have to sleep in it. That's what the wife says anyhow.

dont put one in if you have high milage, Can barley tell a difference (only when cold) and I have it set on stage 2 (mid) It would be a waste of money if you have High milage (personal opion)

What are we calling high miles?

I put it in my car with 74k on it and what a difference, plus now I got a DHP pcm coming can't wait to see what that'll do for me.

above 150,XXX miles sorry i didnt say that at first but yeah mine sucks

i have a thrasher on max, its nice dosent chirp the tires easy to put in also, i like it overall

Mine is 190,000 km and set it on max. It chirps on 1-2 and very nice on 2-3.

does anyone know why mine dont chirp? do i just not have enought power? it also has 80000 on it is that a problem too?

Doesn't worn clutches make shifts firmer?? urs is probably not as worn as mine.