 Re: TC lockup/unlock problems? tranny rebuild ?'s trannyman step in!
Hi Kyle, with that many miles and the trans has likely never been cracked open I would definately consider a failing pressure control solenoid being that you also have a harsh 1-2 shift sometimes. That old of fluid surely isnt helping matters any but your trans does have a lot of miles on it. The TCC rpm surging is somewhat common and a number of things can cause it, including a bad pressure control solenoid. Sometimes a complete pcm reflash takes care of this but the problem will often come back after a few weeks. Below are some answers in order to your questions....
1. The torque converter likely has little to nothing to do with your problem and along with what I mentioned above valve body and internal trans wear really plays a larger role in this behavior.
2. It would be a good idea to service the trans just as you mentioned because of the mileage, drop the pan and replace the filter, but likely it isnt going to help your problem
3. There is not a set list of parts you need any wont know until the trans is apart, but below is a list of commonly replaced parts during a rebuild
-Master rebuild kit which includes new clutches, seals, gaskets, etc.
-Hardened 4th clutch hub
-Thrust washer kit
-All new solenoids and or a rebuilt/upgraded valve body
-New input sun gear
-Replace bands as needed, there are 3
-filter
-Shift kit
-Hardparts as needed
-12.9s or faster and you should upgrade input shaft
-mid 12s or faster and you should upgrade to a single chain setup
That is a rough list of common parts but again you wont know exactly what you need until the trans is apart, but above is pretty much standard that will need replaced
4. The stock drive chain setup is a dual chain, the upgrade is to go with a single chain which is stronger and will handle more power and stronger launches with sticky tires. GTPs come stock with a 2.93 overall ratio and an HD diff. The actual diff ratio is a 3.29 and the ratio change is made by changing the drive chains sprockets. There are other diff ratios but not in the HD diffs. You arent going to get better burnouts with an HD diff than a non HD diff, and since you have a GTP then you already have an HD diff. It is more durable than the non HD diffs but will still work the same as they are both open style differentials.
5. The above parts should cover what you need or at least give you a good start. It really depends what kind of power you will be making and what times you run at the trans as to how the trans should be built. |