Performabuilt vs Finish line
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I cant speak about personal experience with performabuilt, but I hear more bad things than good. people with boltons and making less power then what their trans can hold are breaking them or people with big hp are keeping them together. In my case i didnt want to risk having to take my trans out if it were to fail. From what I read all the time, Frank at PB is a great guy and is willing to help, but I just didnt want to risk anything going out on me.
Also, FLT will send you a complete trans unlike performabuit so you wont have to swap bell/tail housings.
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THE FLT transmission WAS FLAWLESS!
also had a yank pt4000 in it that worked great also!
GOOD LUCK & i hope to see you enjoying your car soon.........!
just going to have to bite the bullet and pick one. if i was you i would go 80 and be done with it.
Many (most?) of the failures of transmissions supplied by FLT, RPM, Performabuilt and perhaps even MadDog, are due to the mistakes and shortcuts taken by the purchaser/installer. Primarily:
* Not replacing the converter or at least sending it out to be opened and rebuilt.
* Not replacing the cooler.
Instead, to save money, the purchaser/installer just tries to flush them, which leaves metal fragments in them, which later get loose and ruin the new trans.
This failure-causing installation shortcut is more likely to occur when someone is on a tight budge and purchases from one of the less expensive sources such as MadDog or even Performabuilt. People that have more money to spend on a high end FLT or RPM are more likely to replace the converter and the cooler during installation.
If I were selling transmission, I would insist on proof of installing a new (or rebuilt) converter and a new cooler before I would even offer a warranty. This is not a radical concept - when you buy a new/rebuilt AC compressor, you have to buy a new drier to receive a warranty.
Again, this is just my hypothesis. I primarily want to emphasize the importance of not reusing the older converter and cooler when replacing the trans. Its a $250 shortcut that is very likely to cost you $2000+ and endless aggravation.
Ok, I done now. Thanks for reading.
Many (most?) of the failures of transmissions supplied by FLT, RPM, Performabuilt and perhaps even MadDog, are due to the mistakes and shortcuts taken by the purchaser/installer. Primarily:
* Not replacing the converter or at least sending it out to be opened and rebuilt.
* Not replacing the cooler.
Instead, to save money, the purchaser/installer just tries to flush them, which leaves metal fragments in them, which later get loose and ruin the new trans.
This failure-causing installation shortcut is more likely to occur when someone is on a tight budge and purchases from one of the less expensive sources such as MadDog or even Performabuilt. People that have more money to spend on a high end FLT or RPM are more likely to replace the converter and the cooler during installation.
If I were selling transmission, I would insist on proof of installing a new (or rebuilt) converter and a new cooler before I would even offer a warranty. This is not a radical concept - when you buy a new/rebuilt AC compressor, you have to buy a new drier to receive a warranty.
Again, this is just my hypothesis. I primarily want to emphasize the importance of not reusing the older converter and cooler when replacing the trans. Its a $250 shortcut that is very likely to cost you $2000+ and endless aggravation.
Ok, I done now. Thanks for reading.

We just got done dealing with a 4L80E that had a "flushed" converter installed. We ended up having to replace the pump due to sand like contamination that had destroyed the bore for the pressure regulator valve and the PR valve itself. Plus a full rebuild, etc. Nightmare due to negligence.










