Thread: Installed new 2800 stall - whining when in neutral

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After reading all the posts and pretending I'm not as blind as my wife says I am, did I miss out on which tranny this is? I do doubt my sanity from day to day, but I can not find where in this thread he stated what the transmission was.............

Flex plate cracks make noise when the torque twists them, so the trans usually must be in gear.

Sorry Nitro - your eyes and sanity are fine (from our perspective). I never mentioned the tranny since it started as a converter swap from a 4000 stall to a 2800. I acquired a '69 Nova drag car that has a Powerglide with an input shaft that allows torque converters from a TH350 or TH400. Not sure why this was done (other than maybe the converters are less expensive), but I'm learning more and more about what it takes to convert a drag car to a "streetable" pro-street version every time I work on it. For instance, I found out this weekend that it has solid motor mounts AND a solid tranny mount. Provides a nice, comfortable ride...

I still have the Powerglide input shaft and the first 8.5" 5000 stall converter in a box on the garage floor. Can't imagine needing that for any street use. The previous owner thought that installing a 4000 stall would make it more streetable. Go figure.

Thanks again everyone...

OK, if it's a 'Glide and the shaft came out a bit when you changed converters, the thrust washer inside can move out of place.

Got it. I'll check it out. I took the lazy road tonight and switched the alternator and put an aluminum radiator in. I guess now I'll have to buck-up and go back under the car...

Well, the flexplate wasn't cracked, but I noticed when I unbolted the converter that the bolts passed freely through the flexplate, but the holes in the converter were so tight that the bolts needed to be threaded through. I took a wild guess that maybe the converter had been put into a bind when we were tightening things up. Sure enough, when I put it on the second time, being careful of the tight converter holes and the bolt fittings, the sound is gone now.

Thanks for all the input everyone. My 6-year old son thanks you as well - Since I don't have to work on the car today, I can take him to Martin Michigan for the NSCA Drags!

i'm glad you got it.... a misalligned torque converter can eat a transmission very fast, i'm glad yours still works and that you figured out what was wrong