727 Trans Band Adjustment

[KidCoronet]

Think I need to adjust a band. The trans shifts perfect from 2nd to 3rd and after much tinkering have the factory kickdown adjusted right so the shift points are solid but the 1-2 shift feels pretty loose/sloppy and even clunks sometimes at low rpm. Does the front band that is adjusted from the outer case or the inner band control the 1-2 shift? Thought I'd start there first to tighten things up

 

[1 Wild R/T]

The external adjustment is second gear...

 

[azmoparboy]

Years ago an acquaintance asked me what my background was. I told him I had a mechanical background. He then said to me, have I got a book for you. Torque flight A-727 transmission handbook. The how to rebuild and modify Chrysler a 727 torch light for all applications.

It is written for a six grader to read, and has so much information that is impossible for me to post what you need to know in this book. It has paid for itself over and over. I even rebuild my own very first transmission with this book.

Hope this gives you encouragement. There are also how to videos on YouTube.

Azmoparboy
Steve Porter
Chandler AZ

 

[1 Wild R/T]

Years ago an acquaintance asked me what my background was. I told him I had a mechanical background. He then said to me, have I got a book for you. Torque flight A-727 transmission handbook. The how to rebuild and modify Chrysler a 727 torch light for all applications.

It is written for a six grader to read, and has so much information that is impossible for me to post what you need to know in this book. It has paid for itself over and over. I even rebuild my own very first transmission with this book.

Hope this gives you encouragement. There are also how to videos on YouTube.

Azmoparboy
Steve Porter
Chandler AZ

View attachment 1723285

I rebuilt my first transmission 28 years before Carl Munroe published that book...And he published that book over twenty years ago... Didn't help me at all...

 

[KidCoronet]

Thanks fellas! I'll report back with the results in a few days. Waiting on a 3/8 drive 1/4 square female socket to turn the adjuster - not enough room in there for my fingers!

 

[gtx6970]

The band adjuster is a 5/16" square ,,,, not 1/4"

 

[KidCoronet]

Dangit! Thanks GTX

 

[KidCoronet]

Update: Success! I was able to adjust the front band by backing it out exactly 2 turns before snugging it down. I've got a Transgo shift kit in it with a 3.8 lever. No more clunks and my 1-2 shift is smooth at low rpm and firm (like I want) when getting after it.

 

[threewood]

8 point drive sockets work on square drive, too. Glad you got it sorted out.

 

[1 Wild R/T]

8 point drive sockets work on square drive, too. Glad you got it sorted out.

twelve point sockets work too... If you happen to have one that fits