Which valve body and pan to use

Did my first 727 rebuild today, by taking the tail shaft out of a 68 dodge 727,and putting it in a 83 Jeep 727. The 68 came out if an old challenger, and I found the rear band to be metal to metal. I am using all of the internal parts of the 83 except for the tail shaft.

When I took the pan off of the 68 it was twice the size (deeper) tan the 83. Also the valve body on the 68 had a gold plate between the halves. When I took the pan off of the 83 it looked like I expected a stock valve body to look. It was all bare metal.

When I compared the two valve bodys there were a couple of places where the holes were different. I have attached some pictures. I am guessing the 68 (gold one) was some sort of performance valve body but I couldn't find any markings one it.

Could yall take a look and see if you an tell me the difference in the two. If the 68 is a performance Valve can some one tell me what it is, and if I should use it, and should I use the deeper pan.

Tom

I looked on the inter web but nothing showed up for me.

http://www.forabodiesonly.com/mopar/archive/index.php/t-153673.html

This offers an explanation.

So neither B&M nor TCI have a shift improver kit for the 1983 727 going in my Jav.  TCIs kits go up to 1979, and B&Ms only go up to 1977.  Does anyone know if the valve bodys are the same in 79 and 83?  It is a non lock up.

You have two transmissions defined as a torqueflite, one built in apparently 1979 and the other built in what seems to be 1983 and you are asking a forum that generally is discussing that antiquated Borg Warner transmission that had a reputation of being  unreliable at best and was no longer being used in 1972 and turns up their nose for the most part at the later 904's with a lock up torque converter version which really is quite a neat little transmission a technical question concerning those.
I am not trying to create a cheap shot here and I am sure some one may be able to answer your question but and there is a few buts.
A transmission used in a truck, that is the Jeep generally has some unique characteristics that do not show up in a car.  And I don't think you are going to get a real good answer.
I have a Chrysler 1975 service manual in front of me.  I am not sure when Chrysler started using the lock up converter, but the AMC manual I have for 1980 cautions about using much of anything between the lock up and non-lock up 904's and 998's that they used then.
I thought Chrysler started using lock up transmissions in 1975 and AMC using the same ones in 1977 but I am probably wrong.
But the 1975 manual from Chrysler says this:

Transmission operational requirements are different for each vehicle and engine combination. And some internal parts will be different to provide for this. There for when replacing parts, refer to the seven digit part number stamped on the left hand side of the transmission oil pan flange.

I think you can take that at face value along with the physical difference between the two valve bodies you already have AND the parts availability that you have discovered by aftermarket performance vendors that the odds are very high you can not change over the valve body.

Now do I know that for sure?  No.  But then again I am not trying to sell you anything.  So I have no reason to give you biased information that you may want to hear rather than what you need to hear.