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  1. TH350 spitting trans fluid out the filler neck

    Drivetrain & Performance
    hi.. hope someone can help.. I have a TH350 spitting trans fluid out the filler neck after test drive. I have checked the tranny vent and it is clear. checked the tranny fluid and it's about a quart low.. so that wouldn't do it (I think).. checked the tranny temp and it reads about 170-180...
  2. TH350 Transmission cooler lines

    Drivetrain & Performance
    73 Nova / 2-door /350 engine / TH350 Auto Trans / Trans cooler / long tube headers. What type of transmission coolant lines are you guys using? Hard, steel braided or rubber? I recently added a trans cooler because my radiator was full of brown bubbling rust, which I also replaced. The hard...
  3. TH350 Vacuum Modulator Hose Connection HELP!!!

    Drivetrain & Performance
    Car stuck in first gear, wouldn't shift. After inspection I noticed the vacuum line that's supposed to connect to the vacuum modulator (spigot, nipple, whatever..) isn't connected. How do I get the hose to stay on? The vacuum modulator has a small rib (?) on the spigot, nipple, etc but the...
  4. LS1 T56 to a Vortec 350

    LSx Forum
    Hi all, finally sick of my worn out leaky th350 and deciding to go for a T56 swap in my '70 Nova. Not sure if this should be in LSx... let me know. I am doing research on a T56 swap and trying to purchase parts this week. I know a guy who knows a guy with a wrecked '02 WS6 looking to sell the...
  5. TH350 Issue

    Drivetrain & Performance
    I have a th350 that is acting up. Went to drive it the other day and only made it about 100 yards before I suddenly had Park and 5 neutrals - no noises or grinds or shudders just sort of faded/slipped away. No forward or reverse gears. Pushed it home. Has been a solid transmission for a few...
  6. TH350 Trans not shifting / kickdown cable question

    Drivetrain & Performance
    Got me engine working, now onto transmission issues. Main problem - th350 not shifting engaging Before i started the engine for the first time I was able to shift from park to neutral to push the car around. I got the engine started and tired to shift but nothing happened. The transmission...
  7. Th350 problem with D and L2.

    Drivetrain & Performance
    Afternoon all. So I'll make this simple as I can but I'm not one with knowledge in the transmission department. Little pre history, it's been rebuilt 3 years ago by a friend's neighbor after the D, L1 and L2 went out. Now I have been using this car daily since even on drives to casino and Austin...
  8. Another Drive Shaft question

    Drivetrain & Performance
    1074 Nova Build: Currently building a 350 with a 4l60e trans hooked up by a TCI EZ TCU controller. Current set up is a a 350 with a Th350, I already know I am going to have to move the cross member but I am looking for info on how long the new drive shaft must be. Any thoughts would be cool.
  9. Transmission Capacity

    Drivetrain & Performance
    I was doing some research for my own benefit and thought I would share this. I figure if I was looking for the answer so are others. This is compliments of the TCI website [/URL][/IMG]
  10. TH350 Shift Issues

    Drivetrain & Performance
    Hello! I posted in here a while back about my engine woes. Got a beautifully rebuilt 1971 350 and it runs great! Only problem is, now my transmission won't shift our of first. From what I've read on this site and others, it seems like my governor is bad or my modulator/ cables are bad. I took it...
  11. 1973 Nova TH400 and Small block swap, need help with mounts?

    Drivetrain & Performance
    I have a small block and a TH400 that I would like to install in my '73. My problem is that I can't figure out a transmission mount. The thing is, for those who don't know, '73s never came with TH400s. '68 to '72s had them, but only behind big blocks, and the big block engine and tranny mounts...
  12. Park Neutral Safety Switch Question ?

    I am looking for information on Park Neutral Safety Switches.... I have a 71 Nova that I am about finished on my LS1/4L60e swap. I am keeping the Column Shifter. So. it was a two Speed PG.. People say to switch the PN switch from a TH350 one to at least be close to the correct range / detent...
  13. Speedo cable delete?

    Drivetrain & Performance
    I have a th350 in my '66 that slowly leaks out of the speedo cable at the transmission end. I know it can be fixed but I don't want the speedo anymore. I always have my GPS in the car which is far more accurate anyway. My question is, is there some kind of delete kit or fitting that I can put...
  14. TH350 leaks???

    Drivetrain & Performance
    Hey, got a TH350 in my car with leaks i cant figure out.... when driving, its no leaks, but when raising the car in rear by flushes out quite some transoil. Raising in front dont get any leaks. Could the gaskets at pumphousing in front,or sealing ring be damaged? Shouldnt it then...
  15. th350 troubles

    Drivetrain & Performance
    First off I'll say I googled this for hours but no one has the same problem. This is my setup th350 in 64 nova, tranny is by redneck racing they say it's good upp to 850hp, has hard drum sprag ect, manual valve body, trans brake. This was how my night went at the street legal drags first...
  16. What Length Shift Cable?

    Drivetrain & Performance
    The shift cable on my '66 broke and i need to order a new one. I have a floor mounted hurst pro-matic shifter and a th350. What length cable should i get? the one that is on there looks like its probably 5 ft and is looped around pretty good. What do you guys run or what works the best?
  17. Transmission Swap

    Drivetrain & Performance
    My th350 recently went out in my 74 and i'm trying to determine what I should put in it. I know i can rebuild the th350 but I want to convert it to a manual. My budget is pretty small but I saw a saginaw 3 speed for a hundred bucks on craigslist. I'd really appreciate anyone's opinion.
  18. upgrading to a th400

    Drivetrain & Performance
    so i have a v8 63 nova and want to put a th400 in the car, i have a th350 it the car at the present time. What would i have to do to fit the th400 under there? my plans are to buy a 4-link set up from TCI as well. Is this a good or bad idea??? PLEASE HELP!!!!!!!!!
  19. Turbo 350 Rebuild Difficulty?

    Drivetrain & Performance
    I'm new to the transmission game (heck, I'm just learning a lot about cars now), but I was wondering... how hard is it to rebuild a Turbo 350? I think I can find a core that's in pretty good shape, but honestly... with a decent workbench and space, how hard is it on a scale of 1 to 10 for a new...
  20. TH350 noise?

    Drivetrain & Performance
    I got a TH350 trans with a new hughes 2,200 stall converter in my 63 SS. I notice while shifting from 2-3 I hear this whistle noise from under the car somewhere. Fluid in trans is full and clean. I double checked that my shifter is properly adjusted. It only will do it when I really lay into the...