O/T 700 R4 trans Question to You trans Guru's

I had a 700 R4 of unknown year rebuilt to install in a '34 Chevy roadster. Car is done and drives BUT with motor off, trans in neutral, you can't push or move the car backwards. Was told that there were a couple years GM made the trans where this is a problem? Can this be fixed by just pulling the pan OR does the trans have to come out? Whats the "fix". Thanks

 

If you look at the trans case on the passenger side just above the pan there is a group of numbers and letters the first digit is the year of the trans. it is also on the edge of the bell housing on some (passenger side to). I am not sure about the problem but i hope this help's .

 

I've never heard of a 700r4 like that. Are you POSITIVE it is in neutral?

 

it should roll even in gear id look at your brakes

 

Yep, neutral!
Rear brakes and e-brake were taken off, no diff.
Someone said that GM sent out a flyer on it years ago, would like to get a copy of that.
Also was told to take the servo out, shave the rod end and test, something about #2 bands to tight, just dunno...........

 

In theory, it might be possible if the band clearance is set too tight (is is a rebuilt unit?) Does it roll with engine idling and in neutral?

 

More info, I was given wrong info, it wasn't a GM flyer it was a Trans-Go kit that the info was in. Said somthing about a gold spacer or?????????

 

Contact Trans Go. They have always had good tech. service.