I look and finally found a site that listed how you could tell what your your tranny came off of. So I look at my tranny for the tag so I could tell. Nope. Couldn't find it. So I wrote down all the numbers on the thing in hopes that someone on here would be able to help me. So here they are:

8R107308 - on the top
C80P-7006-A - left side by the ford emblem
C6DP-7A040A - left side rear
C6AP-7D027-C - right side front
inside the bell housing were two numbers, and i couldn't be sure this is what they said, but it looked like RF-C4AP and 7A-105A.

I counted the splines in it. on the bigger one in the bell housing there were 32. On the smaller there were 24.

Anyone have an idea of what it came off of? Thanks!!!

 

car from 1968 or newer? 7006 is the case, and C8OP indicates a design casting to 1968, and could have been used anytime after that. Bill, aka numberdummy will probably help more.

 

I think you must be counting both the root and crest of the splines (double-counting); I can't think of any car that had a 32 spline input, but 16 isn't out of the question. Likewise, a 12-spline output is reasonable.

A picture is worth a 1000 words!

 

Passenger car starting with '68. It was one which used the high spline count, so you are not hallucinating. It is probably a top loader 3 speed which Ford calls a 3.03. But you need to give us more information: 3 or 4 speed? Has top cover made of sheet metal? How long is the tailshaft? If it does not have a top cover is it an OD?, a 3 sp without OD?

 

Man, they should make this stuff easier!!!

ALBUQ, I was just counting the crest on both of them.

alanco, I believe it is 3 speed without overdrive. Again, I'm new to this, but I called to order a rebuild kit and shift kit and the guy asked me what it came off of so he could give me the right parts. I'll include a couple pictures that I took when I first got it and will try to get some better ones. I don't know if I will be able to make it to my dad's today to look at it for the other answers because Tuesday's are a very busy day for me. But if I don't, I'll definitely make it there tomorrow. Maybe the pictures will help though.



MySpace.com - Derek truck project - Photo 21 of 23

hopefully those work

 

OK - To start it's an automatic - That being said, I'm out of the chase - I do sticks.

 

Looks like a C-4

Yeah, you had me fooled, I assumed it was a stick.

 

It is an automatic, a C-4 which is a 3 speed automatic and not bad with a select shift valve body out of a 69 or later and a good shift kit, and used with a floor mounted B&M shifter with a performance cable. This tranny is probably a select shift out of a 69 or later. The select Shift type means a shift quadrant which is marked L 2 D N R P Where as the Cruise-O-Matic C-4 (another not good Ford "brighter" Idea) was marked L D2 D1 N R P. The two drive positions were for Drive using 1-2-3 or Drive using 2-3. You cannot tell this by looking on the transmission, but if you have a good automatic transmission guy pull the valve body, he can tell. You would need a Select Shift valve body put in in place of the Cruise-O if that was what it had. Of course, to use an automatic in a truck or performance car, it should be gone through, a shift kit in the valve body, and a rebuilt converter used. In California this is likely to cost 1200 You do not need a high stall converter unless you are racing and have a 302 V-8. If you are looking for a 3 speed stick, you would want a 3.03 tranny which some people would call a 3 speed top loader.

 

You cannot go by casting or engineering numbers to ID what year(s) any part is from. Ford doesn't work that way.

Ford may have needed to cast additional replacement parts in 1968, but these parts may not even fit a 1968, or any 1960's car or truck.

All this C80P-7006-A transmission case engineering number means is, the part was made in 1968.

In order to find out what enginering numbers cross reference to actual part numbers is: a Parts Catalog in some cases, or a Master Cross Reference Catalog in most cases.

C80P-7006-A = C5OZ-7005-D .. C4 Transmission Case / Fits: 1965 Mustang/Falcon/Fairlane (6 & 8 cylinder).

More C4 case examples. None of these engineering numbers matches the true year of the part number, or what it fits.

C8AP-7006-C = C5AZ-7005-C / C7AP-7006-A = C5AZ-7005-B / C6DP-7006-A = C5DZ-7005-A.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~
The OP has a transmission that was rebuilt by a transmission shop, here's why I know this.

On the left side of the case, above the manual control selector lever is the Ford trans ID tag, which is riveted on.

The ID tag could also be bolted onto the servo cover or bolted on the output shaft.

The code will read something like this: PCW-AA

Transmission shops are notorious for removing these tags, that's why the OP couldn't find it.

Since this is a rebuilt trans (is there any evidence of green or red paint?), all sorts of different year parts could have been used.

Bottom line, you cannot go by engineering numbers to ID the year of the vehicle the part is used on.

And, even worse...casting numbers cannot be cross referenced to actual part numbers.

 

This is why I told him to take it to a transmission shop where it can be identified by the valve body. By looking at it I can tell that it was for a Falcon, Mustang, Torino, Fairlane, or Maverick depending on whether it was from a 64 to an 81 or so. They all used the same parts except for the front pump rotor and drive spline, and the front clutch going to 4 clutches in 69, rear clutch to 8 clutches. Other than a couple of servo sizes, and the change in valve bodies, the car c-4s are all the same. I have built a lot of them and they are a tranny that can be built from cores and new clutches and front pumps. Every once in a while you have to use new planet gears. You are right in your use of part numbers, but it does not matter if you know the transmission.

 

I opened the tranny up and took some pics of the inside of it. Does this help identify what year it is so I can get the right rebuild kit and shift kit?

 

Yes, but only because I know that early C-4 Cruisomatics had smooth shiny castings, and the later ones were rough. Like I said, take it to a good performance transmission guy and let him look at it. From what I see it looks like a 64-67 Cruisomatic C-4.

alanco

 

Whats that RED stuff all over the ground? I get that alot on my garage floor.

 

Not sure. I'm still trying to figure it out. I have learned it doesn't make good soap. Testing continues...

 

I took the valve body in to a tranny place and he glanced at it and said it was out of a '68. I asked how he could tell so easily and he pointed to an itty bitty number on there. the first two digits were C8 followed by several others. He said that Ford did C for 60's, B for 50's, D for 70's, etc. Then the 8 following it being the exact year, so it was 68. Sounded good to me, so I bought the rebuild kit, shift kit, and front pump since I was told it was bad. Man the stuff adds up quick. I'll take it to a guy that works at a Ford dealership tomorrow that said he'd do it as a side job for me. So that's out of the way.

Now, I was going to order the torque converter that I need when the engine gets here. So I jump onto JEGS and man if it doesn't make it hard there too. There are two different ones that I believe will fit the tranny. Like I said earlier, there are 32 splines on the bigger output and 24 on the smaller. I am guessing that the torque converter attaches to the smaller since JEGS didn't have anything that had the higher number of splines in it. But of the two that had 24 splines, one was a 10.5" bolt patter, and the other was an 11.4" bolt pattern. Which do I need, or how can I figure out which one I need?

The link to the two different ones are:
TCI 450600 - TCI Saturday Night Special Torque Converters - JEGS
TCI 450800 - TCI Saturday Night Special Torque Converters - JEGS