How Long Will A Shift Kit/Trans Cooler Give Me ??

**robinsone** · 02-10-2014

I have a 2004 N/A GP with 171k on it. I developed some occasional hard shifting which I attributed to a PCS issue. The problem would fix itself once I turned off the car relieving the pressure (I believe/read somewhere). Added some Lucas Oil and that more or less eliminated the problem. A few months later I decided to change the fluid and filter for good measure. I added a full bottle of Lucas Oil as well. Shifting was dramatically improved after.

Recently though its been hard shifting again. However, it is not nearly as bad as before, only a fraction of the harshness I had previously. I haven't had the trans codes read yet, but i'm guessing a P1811 code. Regardless of the code, I assume I'm looking at a high labor rate whether its the PCS or worn clutches per the information at tripleedgeperformance.com (a few hours away from me).

I don't mind swapping out the trans if that's the case, I imagine cheaper than a rebuild. My biggest question though is if I did install a TransGo shift kit and/or trans cooler what kind of mileage life will I get out of them before I need a another trans?

I'm not looking for an exact mileage but a ball park figure, if anyone can give me an idea. Please let me know if you have any thoughts, it's appreciated!!

**Scottydoggs** · 02-10-2014

got a magic 8 ball? that shift kit and fluid change seems to help out with the hard shifts, and the cooler is always a good thing to have. but you never know in the end till it goes.

171 is rather high miles for any trans is left un serviced over the years.

**nos4blood70** · 02-10-2014

171k is up there. But shift kits do wonders.

**Logan541** · 02-10-2014

So my trans with 328,000 (1997 GT N/A)and being serviced every 60,000 would not be hurt by adding a shft kit, it prolong it's life. Seems to work ok now.

**Scottydoggs** · 02-10-2014

Originally Posted by Logan541

So my trans with 328,000 (1997 GT N/A)and being serviced every 60,000 would not be hurt by adding a shft kit, it prolong it's life. Seems to work ok now.

god thats a winning trans

if your fluid still looks nice and red i'd do it.

**dsmuts** · 02-10-2014

mine had 230K on it when i parted it due to rust. Trans loved shifting into 2nd chirping tires

**Bronco Boy** · 02-11-2014

I'm coming up on 3 years (70,000km / 44,000 mi) since installing my shift kit; she still acts and runs the same.

Who knows how long the band-aid will last.

**Logan541** · 02-12-2014

Originally Posted by Bronco Boy

I'm coming up on 3 years (70,000km / 44,000 mi) since installing my shift kit; she still acts and runs the same.

Who knows how long the band-aid will last.

But mines already running good I wonder if I should leave well enough alone