part# 34G10 Griner billet Valve body in a TH400

[rallye bob]

I'm running a part# 34G10 Griner billet aluminum Transbrake Valve body in a GM Turbo 400.
I know they are no longer made. My question is, does anyone have a source for a replacement solenoid? TIA...

[ss3011]

Is it an external solenoid or an internal solenoid ? You may be able to call up Coan and ask them also .

[mschafer]

4 years ago I sent my Griner trans brake solenoid to Extreme Automatics in Amelia, Ohio and had my solenoid rebuilt cost $100 then and haven't had any problems with it.Phone # 513-898-0553

[FED 387]

you might try Cope Racing Transmissions in Indiana 219 -374- 0100---he has made a "new" solenoid that replaces the Griner unit for some Transmissions not sure if a TH 400 is one--- but his unit uses a new machined aluminum billet solenoid housing and a common Powerglide solenoid--- as you know Griner died a while back and the solenoids he supplied HE PERSONALLY made each and every one so the source and the secrets went to the grave with him---I would call Cole and see if he can help since no one else seems to be making solenoids any more--- Good luck FED 387

[CMcAllister]

Originally Posted by ss3011

Is it an external solenoid or an internal solenoid ? You may be able to call up Coan and ask them also .

Hutch's Transmissions. Ontario. https://hutchtrans.com/index.html 519-453-4318

Showing the Griner 400 stuff on his website.

This guy got his Mopar stuff. He may be helpful also. He is In Indiana.

http://www.727specialist.com/ 219-718-3542

[Tom Goldman]

check with ATI , they were selling the Griner valve body for a while.

[rallye bob]

Originally Posted by ss3011

Is it an external solenoid or an internal solenoid ? You may be able to call up Coan and ask them also .

internal solenoid

[rallye bob]

Originally Posted by Tom Goldman

check with ATI , they were selling the Griner valve body for a while.

That is who I purchased mine from....

[ss3011]

Originally Posted by rallye bob

internal solenoid

The system is so simple , can you tell if the solenoid is shorted or is an open circuit ? Is the connection to 12v complete or is it possible the transbrake switch is not making contact ?