I have a 67 with a 400 Chevy motor and turbo 350 auto transmission. The problem is someone cut the detent cable off about 4 inches above tranny when transplanting it. It hasn't been run yet and I switched motors but don't know much about detent cable hook ups. Can I fish the old one out of tranny? I have no bracket for cable on the intake, one available? Where on the carb does it hook up? (Holley carb) Also there is a sender screwed in just behind detent cable in tranny...what is it for? (back-up or nuetral start?) Thanks for all the help, as always! Bob

the neutral saftey switch and reverse switch should be at the base of the steering column.
i s'pose the th350 may have a reverse switch on the trans itself for different applications.

the cable should be setup the same as the TV cables in later transmissions, which can be changed out without dropping the pan. there is a hook which comes up from the trans and fits into an eylet on the base of the cable. undo the bolt which holds the cable, and pull it up 'till you feel it stop, then hold the hook up with a pocket screwdriver, and slide the eylet of the old cable off, and the new one on.
if by some chance the hook falls in, which it should not be able to, or you have any major problems, such as a bent hook, or there's not enough room to get the cable off, it can be done with the pan off.

you will probably want to scour a salvage yard for a bracket, or make one. as far as hooking it to the carb correctly, it will be about 180* out from where the accelerator hooks to it, as it will be going in the opposite direction ( it is pulled toward the front, while the gas cable pulls rearward) there may be kits for this thru art carr or similar sources if your carb has no place for it. the cable needs to be relaxed at idle, and fully pulled to the stop in the trans. at WOT.
hope this helps.

Thanks for the reply six...I had no cable coming out of the tranny, just 4 inches of housing. I removed the bolt holding it in and could fish nothing out so I dropped the pan and can find no where to hook new cable. I layed under there for 15 minutes looking and nothing! I am stuck and going to sleep on it to figure out what to do next. Any suggestions? Thank you, Bob

someone probably removed the hook. it should have been sticking up about a quarter inch from the trans when you took the housing off--unless the th350 incorporates the hook to the cable, which i s'pose is possible. if you have a new cable, look at the end. if it has an eylet, you need to buy a hook.
your local trans shop may have a few extras lying around if you ask the technicians. they are usually very helpful. i looked around on the net for an exploded diagram of the 350, but i cant find one.
i really dont know that much about transmissions. i did a transaxle in school a long time ago, and had a couple of 2 speed forklift trans apart, but that's it.

I took a digital photo of the underside of the tranny with the pan removed and printed it then took off for a friends place. He hooked me up with a friend who runs a tranny shop who said someone prob. rebuilt the tranny and they removed the detent aperatus as they put in a B&M Megashifter so it would not downshift unless you want it to. He said he does it on trannys for people who desire this option. The sending unit has somthing to do with the advance(?) but is not important. I buttoned it back up, put in new tranny fluid and bent new coolant lines. I need to figure out the wiring and I will be ready to break in the motor. Thank you for all the effort you put in for me! I'll let you know when I get it running (wheter or not you want to know!) Take care, Bob