Non-lockup to Lockup converter

[87GN]

When I bought the car it had a nonlockup converter. Now I would like to go with a lockup converter. Do I just buy it and install it or is there other changes involved.

Thx, Nic

[ONE_QUIK_6]

I would like to push this to the top, since I also have a non lock up and don't like the mph that I have lost on the big end. Considering the 9/11 but I removed a ball bearing in the front of the "front pump" Don't know if this is going to be a problem or not. Thanks

Zak

[turboman38]

You should not need to do any thing else other than to take the non lockup out and put the lockup in. Make sure you put a quart of tranny fluid in the covertor before installing it and make sure you get the convertor all the way on the input shaft.

[MeanBuicks]

In most cases, the lock-up valve in the pump has been modified, repositioned or replaced during the non lock-up conversion. The pump will need to be returned to stock.

The ball in the end of the input shaft provides a cushion for the TCC apply. You can run the lock-up w/o the ball but it will apply firmer.

[turboman38]

Sorry for giving the you the wrong info!

[ONE_QUIK_6]

Thats what I hoped you would say

[87GN]

What pump are we talking about and what is TCC.

Thx, Nic

[squeeze87]

TCC = torque converter clutch. The checkball is in the input shaft.
There is a vave that installs from the bottom,(remove pan and you'll see it) that needs to be replaced with a lockup valve. It's retained by a snap ring. you will also need a solenoid and the correct wiring harness if you dont already have it.

[87GN]

squeeze87

Where do I get the lockup valve, the seleniod and harness??

Thx, Nic

[squeeze87]

I think most performance trans builders can fix you up.

[Otto J]

where do you live, maybe i can help
Otto

[Geoff87]

Guys- I'm in the same situation that you are. I bought a trans which I was told was a lock-up. Upon installing I discover that it's not.


Greg, what parts are needed if any, to return a pump back to stock?

[87GN]

Otto

Huntsville, AL

Nic

[MeanBuicks]

Depending on what's been removed from the transmission during the non lock-up conversion, you'll need:

• input shaft o-ring
• TCC valve, springs, retainer for the pump
• wiring harness & solenoid
• valve body pressure switches
• case electrical connector

Also, in some cases, depending on the converter configuration, the little journal on the end of the input shaft where the o-ring goes has been cut off. That would require a new input shaft.

[87GN]

Thanks for the info.

Nic