A727 - to rebuild or not to rebuild

[challboy728]

I have an A-727 transmission that has not been used in approx. 40 yrs. It has always been stored inside. It has also always had fluid in it. I would like members opinions on whether I should just change the filter and fluid or have someone go through the transmission. It is the original transmission from my Challenger T/A, and is going back in it.

 

[DetMatt1]

It's out of the car, now is the perfect time to have it inspected by a pro at the very least. The last thing I want to do after I install a trans is take it back out.

 

[340challconvert]

Good advice

 

[RUNCHARGER]

It has to be resealed anyway, Might as well take it to someone that knows what they are doing and go through it.

Sheldon

 

[moparleo]

Do it once, do it right.

 

[challboy728]

Thanks, guys! I kinda suspected that would be the way to go. Totally agree, I do not want to pull it back out once it is installed.

 

[Adam]

Yes, 40 year old seals probably quit sealing 30 years ago...

Actually, they are not that hard to rebuild if you are even a moderate mechanic... the only special tool needed is maybe a slide hammer to pull the front pump. Some say you need a spring compressor, but I was able to improvise something.

Get a good kit like this ($179) www.coperacingtrans.com/product_info.php?products_id=326&osCsid=hehswnign

And I would upgrade the valve body to something like the Cheetah Auto/Manual ($289): http://www.summitracing.com/parts/tac-17676/overview/

Also, deep sump pan, and better converter.

The rebuild kit should have instructions, and there are lots of good articles/videos/ books on the web. Keep everything clean, take your time, not that hard, and you will save a grand.

 

[moparleo]

Remember that you need your cooling system to be at 100% efficiency to keep the trans fluid at normal temperatures. You should run a larger , separate trans cooler.

 

[challboy728]

Thanks again to all who posted. Since it is an original T/A (#'s matching), I am keeping pretty much everything stock. I do have a Mopar Performance shift improver kit that I may install.