On the passenger side right behind the cooler lines look for a stud with a jam nut coming from the case.
No stud = TH350
Stud = TH250
No stud = TH350
Stud = TH250
Need help very confused
- Thread starter TimothyOnTop
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Makes more sense now as to why the kickdown cable wasn't hooked up, because your 85 carburetor isn't equipped to utilize a kickdown cable. So now we've determined your car's not stock because it's a 250C/350 maybe a 350C. Which means you do have a kickdown, and that 200C TV cable isn't worth squat for what you're needing to do.
Your drawing seems odd. The cut corner should be in the back of the transmission. Square end is up front on a 250/350. The corner cut is on the passenger side rear.
If I were going to place a bet, I'll say TH350. Just a WAG, but it's the popular thing that was done when the TH250C's sh*t the bed.
Passenger side of the transmission- look here where the blue arrow is. If there's a stud/nut, it's a 250. If not, it's a 350.
Your drawing seems odd. The cut corner should be in the back of the transmission. Square end is up front on a 250/350. The corner cut is on the passenger side rear.
If I were going to place a bet, I'll say TH350. Just a WAG, but it's the popular thing that was done when the TH250C's sh*t the bed.
Passenger side of the transmission- look here where the blue arrow is. If there's a stud/nut, it's a 250. If not, it's a 350.
Yeah the square cutout is on driver's rear my phone flipped the imageMakes more sense now as to why the kickdown cable wasn't hooked up, because your 85 carburetor isn't equipped to utilize a kickdown cable. So now we've determined your car's not stock because it's a 250C/350 maybe a 350C. Which means you do have a kickdown, and that 200C TV cable isn't worth squat for what you're needing to do.
Your drawing seems odd. The cut corner should be in the back of the transmission. Square end is up front on a 250/350. The corner cut is on the passenger side rear.
If I were going to place a bet, I'll say TH350. Just a WAG, but it's the popular thing that was done when the TH250C's sh*t the bed.
Passenger side of the transmission- look here where the blue arrow is. If there's a stud/nut, it's a 250. If not, it's a 350.
There is no nipple on mine so it is a th350? Is there a difference between th350c?
Makes more sense now as to why the kickdown cable wasn't hooked up, because your 85 carburetor isn't equipped to utilize a kickdown cable. So now we've determined your car's not stock because it's a 250C/350 maybe a 350C. Which means you do have a kickdown, and that 200C TV cable isn't worth squat for what you're needing to do.
Your drawing seems odd. The cut corner should be in the back of the transmission. Square end is up front on a 250/350. The corner cut is on the passenger side rear.
If I were going to place a bet, I'll say TH350. Just a WAG, but it's the popular thing that was done when the TH250C's sh*t the bed.
Passenger side of the transmission- look here where the blue arrow is. If there's a stud/nut, it's a 250. If not, it's a 350.
So basically I am good to go on driving as far as the kickdown cable not being attached on the th350?
th350c is a "lockup". lock up will lock the sections of the converter together
yes, ive ran several th350's without kickdown cables in the past with no issues. kickdowns basically just control shift points
One other way to determine what you have for a T-box is to take your cell phone and re-attach it to that long stick again. Then moving around the car to the passenger's side, slide/stick the phone and home brew selfie stick under the car so it is focusing on the rear of the t-case near the crossmember. If it is a TH350C, what you should see via the camera on the phone is a cylindrical object attached to the case beside the tailshaft housing with a nipple/hose attached to the rear face of it.. That is your modulator valve and it is vacuum controlled. The hose will be attached to a vacuum fitting that is either located on the base plate of the carb or more commonly screwed into a port on the intake behind the carb. Most of that line will be a shaped steel tube with only short sections of rubber tube at either end to complete the connection top and bottom.
Should the modulator valve not be present, then you likely do not have a 350 of any kind; it is more probable that you would have a TH200R4 or the Th200-4R or one of the variations on that theme.
The biggest immediate distinction between the 350's and the Th200R4 and the 700R4 is the 350's use engine vacuum to decide shifts, whereas the 200/700's use internal pressure and the TV cable to make that decision.
If all you have to look at is the ends of the cable, then the TV cable has a little plastic oval shaped cap on the end which snaps onto and over a mushroom shaped pin on the lower ear of the throttle shaft lever.
The 350 cable will likely display a long thin metal blade with a slot cut in it. It drops over the same pin but uses a metal clip or an E clip to retain it, or possibly even a cotter pin.
The two shots of the service manual instructions pretty much cover the install and adjustment if you do get to deal with the TV cable. I did post a detailed description of the whole process last summer so the resident search engine for this board ought to able to locate and retrieve it for you.
Too bad your driveway is a lake. That kind of puts a crimp in getting some proper shots of the case and what is hanging off it.
Nick
Should the modulator valve not be present, then you likely do not have a 350 of any kind; it is more probable that you would have a TH200R4 or the Th200-4R or one of the variations on that theme.
The biggest immediate distinction between the 350's and the Th200R4 and the 700R4 is the 350's use engine vacuum to decide shifts, whereas the 200/700's use internal pressure and the TV cable to make that decision.
If all you have to look at is the ends of the cable, then the TV cable has a little plastic oval shaped cap on the end which snaps onto and over a mushroom shaped pin on the lower ear of the throttle shaft lever.
The 350 cable will likely display a long thin metal blade with a slot cut in it. It drops over the same pin but uses a metal clip or an E clip to retain it, or possibly even a cotter pin.
The two shots of the service manual instructions pretty much cover the install and adjustment if you do get to deal with the TV cable. I did post a detailed description of the whole process last summer so the resident search engine for this board ought to able to locate and retrieve it for you.
Too bad your driveway is a lake. That kind of puts a crimp in getting some proper shots of the case and what is hanging off it.
Nick
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