Overdrive Transmission Relay

This area is for posting questions/information concerning 1958-60 year Thunderbirds NO FOR SALE POSTINGS
Post Reply
Posts: 2
Joined: Mon Oct 22, 2018 5:51 pm

Overdrive Transmission Relay

Post by 597LSCJ » Mon Nov 19, 2018 3:09 pm

I am converting my 59 convertible with 3 speed to s T89 R11 overdrive, does anyone have a photo of where the factory installed the overdrive relay? Any help would be greatly appreciated.

Posts: 457
Joined: Sat Nov 30, 2013 10:23 pm

Re: Overdrive Transmission Relay

Post by stubbie » Mon Nov 19, 2018 9:43 pm

Don't have any pictures but from what i have seen on other fords of that era i think on the firewall just to the right of the transmission tunnel. Around the kick down levers.

User avatar
Alan H. Tast
Posts: 2940
Joined: Wed Aug 20, 2003 10:52 pm
Location: Omaha, NE

Re: Overdrive Transmission Relay

Post by Alan H. Tast » Mon Nov 19, 2018 10:32 pm

59 TBird Assembly Manual shows relay location on firewall, harness, solenoid on trans, etc. Plus has the wiring schematic. VTCI 1958-60 Original Factory Specification manual also has photo of relay on firewall. Both of these publications are must-haves for your library - bite the bullet and get them - you'll be glad you did and wonder why you didn't get sooner.
Alan H. Tast, AIA
Technical Director/Past President,
Vintage Thunderbird Club Int'l.
Author, "Thunderbird 1955-1966" & "Thunderbird 50 Years"
1963 Hardtop & 1963 Sports Roadster

Post Reply