What transmission do I need?

[Rough75C20]

Hello,

I’m waiting on a transmission to be rebuilt, but can no longer wait as the place I’m storing it needs it moved. I don’t have the transmission and the guy rebuilding it won’t contact me. The guy probably stole it. Either way, I need to figure out how to know what th350 I need. Are there different versions? I have the two piece driveshaft and it is a 2wd long bed with a 305 engine. How do I tell?

Thank you


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[zieg85]

TH350 with a 9" tail shaft should have been in there if it was always an automatic.

[Rough75C20]

TH350 with a 9" tail shaft should have been in there if it was always an automatic.

Awesome. I’ll look for that. Anything else that I need to look for other than the 9 inch tail shaft to make sure it will work with the driveshaft?

[zieg85]

Output shafts are all the same spline in the TH350 and TH350C.  A 700R4 swaps in if you move the cross member a little.  Attached is measurements

[VileZambonie]

If you are going to get a new transmission grab an extra gear and go with the 700R4

[JohnnyPopper]

My TH350 is on it's last legs. Have considered a 4th gear but have conflicting info on the control cable/system damage if not done correctly.

So much so, that I'm just stuck. Hate it.....

Where can I get the straight dope (oxymoron?) on this subject? AI?