Ford Mustang Forum banner

c-4

  1. C-4 3 gear seizing up issues

    Classic Tech
    Help I have a 91 lx stroked 351 1970 a-code high nickel content the motor is about 450 to the wheels guessing from the engine builder. I have a c-4 transmission that had 10 street miles on it, have not been on the track yet. It started slipping on me then I lost 1st and 2nd gear, only 3rd and...
  2. Bellhousing for a '71 302 C5?

    Classic Talk
    Greetings, lady and gentlemen of the forum. It's been a long time since my last discretion. I'm sad to say that I have been stricken by the Broken Bellhousing Blues. Don't worry. It's not contagious. And so far, I haven't been able to find a cure. My poor car. It's a 1971 Mustang with a C5...
  3. Rebuilt Transmission problems

    Classic Tech
    So, today we (me and my dad) installed the freshly rebuilt engine and transmission into my car, and got it rolling down the road (fairly quickly i might add) at first everything was going well. But, after going to the parts store and back home the transmission squeals loudly after engaging...
  4. 1969 Mustang C4 on 1989 5.0 Engine or AOD

    Classic Tech
    I want to install either transmissions on my 1969 Mustang. Seems like if I install the AOD I have to shorten my driveshaft. If I install the C4 (small bellhousing), I have to find a flex plate that will fit. Any help would be greatly appreciated. I'm looking for solutions to either. I'm not a...
  5. 1967 289 need help still stalling in gear at idle

    Classic Tech
    Hello; I have posted before about my 1968 mustang coupe with idle problems. It has a 1967 289 with unknown C4 auto with edelbrock performer intake, holley avenger 600 cfm, hooker headers & from what my mechanic tells me an agressive cam. Not sure what cam specs are, was in when I bought it...
  6. Few Questions on drivetrain

    Classic Tech
    How hard is the c-4 to T-5 swap on a 65 coupe? and how much does it cost to do the swap? also, what transmission is the AOD? What cars came with one that i could get one out of at the local pick and pull? Next, what cars came with ford 8 inch limited slip or trac locks? I am swaping my 2.80...
  7. 68 coupe c4 VIBRATION!!!!!

    Classic Tech
    above 50 mph there is a vibration occurung. its almost like its rolling like .... .... .... .... .... .... .... ever 1 second or so. could i have bent half shafts in the rear end? or is this more likely a driveshaft concern? any insight would be greatly appreciated
  8. 1966 Mustang C4 Auto Transmission, what kind of fluid?

    Classic Talk
    Alright, so I'm trying to find out what kind of fluid should be used, or is ok to use (wont kill my transmission) I've seen alot of stuff saying dont do it its the end of the world, and other people saying it really doesn't make a difference another issue though im not entirely sure if it...
  9. C-4 wont shift into 3rd!

    Classic Tech
    So I just finished an EFI swap on a 68 coupe. Now my transmission won't shift. It won't upshift, or dowbshift. I can manually shift it from 1st to 2nd, and downshift from 2nd to 1st, but it won't go from 2nd to 3rd ever. I thought that I may have over tightened the luck down switch, so I...
  10. 1966 Mustang 6 Cylinder

    Introductions
    Hey everyone, I'm very new to the car game. I'm actually a musician and I dont have a whole lot of experience with cars. BUT I DO need to turn this beautiful car into a daily driver. 200 i-6 c-4 transmission. I know that there was just recently a new carb installed in her. the transmission...
  11. Proud owner of the infamous C-4 transmission

    Introductions
    Hi, Thanks for letting me join the Mustang forum. I truly do not own a mustang, but took advantage and added this great transmission to my 1939 Ford flathead V8-60. I have been having problems with the transmission leaking while in neutral, but cannot find a local source to explain what may be...
  12. 1968 C-4 Transmission, finding parts and info?

    Classic Tech
    I have a 1968 coupe with a 289 C-4, its a Hi-Po. I am in the process of restoring it and i am working on the transmission. I took it to a local shop who has stripped it and told me several things need replacing, bands, clutches, valve body. I have found several kits on summit and stuff for...
  13. C-4 Transmission will not shift out of second

    Classic Tech
    I have a 66 with a transmission that had been rebuilt. It used to run perfect, but the car was parked since summer of 07. Now it will lag when shifting into 2nd, and it doesn't feel like it's shifting into 3rd. Any ideas what can be the problem? :headscratch: Thanks for reading this.
  14. 1966 Mustang Automatic Transmission Fluid

    Classic Tech
    I have a 1966 Mustang Coupe with an inline 6 cyl 200 cu in and a C4 automatic transmission. It has been sitting in my garage for about 7 years. I bought a new gasket and filter for the transmission and I want to put in synthetic automatic transmission fluid. I have been looking at Mobil 1...
  15. C-4 automatic shift linkage

    Classic Tech
    While reassembling the shifter linkage because I was replacing the shifter bushings to take the 'play' out of shifter handle, the piece that goes through the bottom of the chrome shifter and connects to the shifter rod broke. i have no idea what this piece is called, but its a solid metal piece...
Top