Search found 917 matches

by jtschug
Mon Jan 11, 2021 2:19 pm
Forum: 1964-1966 Thunderbirds
Topic: 66 Fuse Panel Breakers and Buss Bars Q
Replies: 8
Views: 153

Re: 66 Fuse Panel Breakers and Buss Bars Q

The I think the backup lights run through the neutral safety switch on the column, not the transmission.
by jtschug
Sun Jan 10, 2021 4:12 pm
Forum: 1964-1966 Thunderbirds
Topic: rebuilt 3rd member
Replies: 33
Views: 2795

Re: rebuilt 3rd member

I don't know why the extra rib is there. Clearly when Ford designed the 9.375 ring gear, they expected it to be stronger than the 9". They installed them in heavier vehicles with bigger engines, like all the Lincolns and the 428, but not 390 Thunderbirds. They also put them in the heavy duty pi...
by jtschug
Fri Jan 08, 2021 5:39 pm
Forum: 1964-1966 Thunderbirds
Topic: rebuilt 3rd member
Replies: 33
Views: 2795

Re: rebuilt 3rd member

Yep, that curved rib confirms it is a 9.375” ring gear with 31 spline axles.

A 9” third member with 31 spine differential will bolt in.
by jtschug
Thu Jan 07, 2021 8:52 pm
Forum: 1964-1966 Thunderbirds
Topic: rebuilt 3rd member
Replies: 33
Views: 2795

Re: rebuilt 3rd member

Oh, I see it is still in the car.

If this is a Q code 428, it is very likely a 9.375” ring gear with 31 spline axles
by jtschug
Thu Jan 07, 2021 8:37 pm
Forum: 1964-1966 Thunderbirds
Topic: rebuilt 3rd member
Replies: 33
Views: 2795

Re: rebuilt 3rd member

The picture is upside down. The ribs I need to see are on the other side of the yoke on the top side.
by jtschug
Wed Jan 06, 2021 10:41 pm
Forum: 1964-1966 Thunderbirds
Topic: rebuilt 3rd member
Replies: 33
Views: 2795

Re: rebuilt 3rd member

I bought it from John’s industries and I paid extra for the “quiet service”
by jtschug
Wed Jan 06, 2021 2:29 pm
Forum: 1964-1966 Thunderbirds
Topic: New advice for those with overheating problems
Replies: 3
Views: 112

Re: New advice for those with overheating problems

If you have the octane to handle it, you may benefit from a few more degrees of advance. I’m running about 18 degrees at idle with the vacuum advance disconnected.
by jtschug
Wed Jan 06, 2021 11:21 am
Forum: 1964-1966 Thunderbirds
Topic: New advice for those with overheating problems
Replies: 3
Views: 112

New advice for those with overheating problems

If you have an overheating problem *and* your car has an aftermarket carburetor (Edelbrock, Holley, etc), then make sure you have the vacuum advance on the distributor connected to *manifold vacuum* and NOT *timed vacuum*. Aftermarket carburetors have a *timed vacuum* port for vacuum advance on 1970...
by jtschug
Wed Jan 06, 2021 9:54 am
Forum: 1964-1966 Thunderbirds
Topic: rebuilt 3rd member
Replies: 33
Views: 2795

Re: rebuilt 3rd member

I have a WEF-H axle tag and I'm 95% certain it came from my 9.375" rear axle from a 1966 428 parts car. This is highly relevant because these are 31 spline axles while the standard 390 axle has 28 splines. Please take a picture of the center section. The ribs will definitively prove if this is ...
by jtschug
Tue Jan 05, 2021 11:33 am
Forum: 1964-1966 Thunderbirds
Topic: no heat
Replies: 9
Views: 214

Re: no heat

Vacuum to the heater valve does not go directly from the control head to the heater valve. It makes a pit stop at a bi-metal rheostat in the blower motor housing. The purpose of this device is to adjust the heater flow as the coolant temperature warms up. They have been known to fail and there are n...
by jtschug
Wed Dec 30, 2020 6:38 pm
Forum: 1964-1966 Thunderbirds
Topic: Rear Leaf Sags
Replies: 16
Views: 400

Re: Rear Leaf Sags

I replaced mine with Detroit Eaton springs last winter. They aren’t far from me and I picked them up myself. They are right in downtown Detroit across the street from where Tiger Stadium used to be in Corktown. The rubber pads the have in the installation kit will work, but you can get more correct ...
by jtschug
Wed Dec 30, 2020 6:30 pm
Forum: 1964-1966 Thunderbirds
Topic: 1966 Power Seat Aft Movement Not Working
Replies: 9
Views: 194

Re: 1966 Power Seat Aft Movement Not Working

A loose wire doesn’t require a switch rebuild. I imagine something is wrong under those black sleeves
by jtschug
Tue Dec 29, 2020 4:12 pm
Forum: 1964-1966 Thunderbirds
Topic: 1966 Power Seat Aft Movement Not Working
Replies: 9
Views: 194

Re: 1966 Power Seat Aft Movement Not Working

Is this a passenger side seat?
by jtschug
Mon Dec 28, 2020 6:49 pm
Forum: 1964-1966 Thunderbirds
Topic: 1966 Power Seat Aft Movement Not Working
Replies: 9
Views: 194

Re: 1966 Power Seat Aft Movement Not Working

The same motor does everything, so if it moves at all then the motor is fine. If it was a solenoid, you would hear the motor spin. The problem is between the switch or the relay and the wiring in between. It could just be something unplugged. I’ve also had broken pins in those rubber wire connectors
by jtschug
Thu Dec 24, 2020 10:27 am
Forum: 1964-1966 Thunderbirds
Topic: Convertible owners; can anyone ID this?
Replies: 22
Views: 497

Re: Convertible owners; can anyone ID this?

Mine has a fusable link in the convertible power circuit