Fellas -

A few weeks ago, I removed the TH400 from my 66 in order to replace it with a Muncie; it's an original 4 sp car.

What I know about the trans - it's a short tail TH400, reverse manual valve body, shifts very nicely, 10" Fairbanks converter.

What I was told about the trans - PO said that he spent over $2000 on it (he could have been talking about trans, converter, and shifter), but had no receipts. He called it a "Fairbanks" transmission, but I don't know if it was rebuilt by them (I know they sell parts, but not sure about built transmissions; maybe it was rebuilt with Fairbanks parts). PO never finished the car; trans has maybe 25 miles on it.

I'm trying to sell the trans/shifter/driveshaft/flexplate/cooler, and have had some folks interested, but all I can tell them about it is what I can tell from the outside. Is there anything I can do to figure out what sort of build it has short of tearing down the entire trans? I can rebuild a 4 sp, but I'm clueless when it comes to automatics. Have calipers, mikes, etc, so I can measure whatever, but don't know where to start. If tearing down the entire trans is not as much of a job as I think it is, I suppose I could tackle that, too.

Also curious about how much hp the trans should be good for - assuming it's a basic fresh reverse manual valve body TH400 in a street/strip Chevelle.

Any info is sincerely appreciated.

Thanks!

Scott

You would have to completely disassemble. If you did you would be able to see things like did it get an early direct drum with roller sprag. You'd see pretty easily how many clutches went into each drum. You could see if any mods were made to dual feed the direct clutches. Fancy aluminum drums and torrington bearings would be easy to identify.

You would need to study a good book that talks about performance mods and do a bunch of on line searches.

I dont think you could tell much from the outside unless it had a part number.

You may want to just call it a good working used transmission and base your price on that.

I agree with Paul, unless you disassemble the tranny you can't tell, I have the same issue with a turbo 400. I have told the potential buyers that its suppose to be [what ever was told to me by the previous owner] but it might be totally different than what was stated. You might be able to get more dollars by giving a good story, but I'm to honest to sell an item that way and I don't want the buyer coming back and saying I lied to them, honesty is the best policy, just tell the buyer that you don't know for sure. Just my opinion !!!