I am fully aware Ford did not put either GM or Chrysler transmissions in any of their vehicles. That would have been AMC. The point was everyone made 2 spd transmissions and after 40 yrs you are honestly going to say having a 2spd in it is an impossibility? After all my tags indicate a 240/3spd/9" 3.70:1. Currently has (and did when I bought it) a 302/auto. Guess the tag must be wrong. Especially since the 302 by every identification method used so far indicate it is from the '80's & out of a Crown Vic. Third member is an 8.8 IRS. Tag must be wrong on that one also.

Wonder what the tag will say when the 460/C6 is in it. I know I know Ford never put 460's in 1967-1972 trucks. Must not really be a 460. Probably a 240 and I just have no idea what I am talking about. I really need to learn how to ID a Twin I beam IFS because I thought what is under my truck came out of a Crown Vic and has rack & pinion steering. Gotta be either a Bendix or Saginaw box because that's what Ford put in it.

We are talking 40 years of multiple owners. What is and what is not in any of the trucks discussed here is a crap shoot. Especially when dealing with someone young who has just started driving & wasn't even alive when these trucks were built.

By the way I bought a truck down in TX back in the mid 80's that had a 2spd automatic in it. Did I say Ford put it in? His column indicates a 2spd trans.

 

I agree, after 40+ years, anything could be under the truck. Of course, the steering column could be from a different vehicle too, who knows? However, if it will not do anything higher than 35 mph, and it sounds like the engine is revving too high, it is obviously not a 2 speed. It is a 3 speed that does not go into 3rd gear. If it worked fine before the intake swap and doesn't now, it is a vacuum issue.

 

Sounded like he never got over 15mph before carb swap. I asked if it was in N when he put the shifter in N. If a 3spd trans he should be in D when the indicator is pointed at N unless D1 is actually D2 on the trans. But then there is the problem of shifting. Is this a 2WD or 4WD? Maybe if a 4WD he has the transfer case in L.

Maybe the trans is just plain wiped and needs replaced also. If a 3 spd and he actually has no 3rd.....

 

well i bought this truck with the engine and tranny in it. it used to be 3 on the tree with a 360. the guy made a wooden center console and wrote PRND on it in pencil so im not even sure if im reading that right. thing is even if there is something under D i cant put the shifter in it cause of the makeshift console. but D is the one right under N no matter what auto tranny it is right? another thing, its a 2wd and all the vaccuum stuff is right as far as hose and steel line goes. ill get pic my next day off (wen) and post them. thank yall for the help and i hope its something minor cause i seriously though i had the engine and everything handled and was ready for body work and paint....

 

Does it have an aftermarket shifter on the floor? It might need adjustment then? If so, what brand is it? If not a floor shifter, then junk the console so you can use the full movement of the column shifter.

 

Tabor, There is about as much confusion in this thread as I have ever seen, and I have been coming here every day for a while.

To the best of your knowledge, what engine is in the truck today? What transmission?

I went out and looked at the column on my truck and it reads PRND21. It is a C6 hooked to a FE, with the vac hose connected directly to the manifold passenger side rear. It doesn't have to be connected to the carb to work, just have vacuum.

Forget about what someone wrote down, how many ticks does the tranny have? Start on one end where park should be, pull the lever and listen/feel for a tick as going into R, then N. After you have found them all, start the truck and check them out. P you get nothing, R backwards, N nothing, D forward movement, etc.

With the engine off & wheels chocked go under the truck and work the shift arm on the side of the tranny to see if the tick count matches what you found in the cab. Make sure with moderate (only) force that you have gone end to end. Counting the starting point you should find 6 totally.






John

 

ya i know. i KNOW i have a 302 out of a 71 e100 and to the best of my knowledge the tranny that went with it. according to my work computer the 11bolt shallow pan is a 3 spd c4 but i will get a video and post it on here doing everything everyone has said to do. thank you all for your help. be back on wen.

 

It's hard to tell what happened to these old trucks though out the years. Somebody may have done like i did with my 79 just to get it on the road for awhile. 94- 302 ,66 green dot pan fill c/4, later year overdrive 50oz. flex plate for correct balance. Worked okay,just never liked the old pan fill trany, but it gave me a chance to drive it as i did the other body repairs and mods. All has been pulled out now and replaced with a 460 , C/6 ,which i put together during the time i had that junk all put together.__JIM

 

OK, If it is a 11 bolt C4 it will be a 3 spd tranny.

I still want yo u to count the ticks.



John

 

i will like i said ill be out there in two days. wen the 16th

 

Do you have good vacuum at the modulator end of the line? If not, the trans is going to upshift late, or not at all in some cases.

If you unplug the hose at the modulator, there should be enough vacuum leakage that it at least affects the engine idle (if you don't have a gauge to plug onto the line).
If you are connected to the vacuum tree at the manifold, the 'branches' can have different sized bores, restricting vacuum.

A failed modulator could also give this problem.

 

well it was too cold here today to do much. dont have a shop its outside but i undid the kickback and that seemed to do the trick but a new problem occured today. when i put it in drive it didnt want to kick into first until i revved it up a little. only thing left is the modulator. also to answer the question about the clicks.... i have nothing under drive. PRND. one the center consule block it, two it wasnt even working right in drive. but i only felt it engage in PRND. thank yall for your help. update on friday.

 

Hope it's warmer for you Friday, supposed to be colder here in the Tarheel this weekend.

Next disconnect the shifter arm from the tranny arm on the side of the tranny, and run the arm by hand and count the clicks.

You could have a bad tranny. What do you know about it? Do you know that it was working in the donor vehicle or had it sat for a long time?




John

 

as far as i was told it was working but it had sat for 6 months before i bought it. besides that it is started and driven twice a week now.

 

You have never felt it go into hi gear??

How fast have you gotten it up to when you have been driving it?




John