anyone know the thread size of the stock sender going into the motor back by the brake booster?

 

OR does anyone know if i can use a mechanical temp sender in the port near the t-stat without interfering?

 

If memory serves me, the thread size of the sender location is 1/2"NPT, maybe 3/4".

The location, above the thermostat, is 1/2"NPT.

I understand that a spacer nipple must be used to allow the probe to clear the thermostat.

If you will look back a few pages, me, or someone else, asked a similar question, and someone posted a very good picture, along with a good explanation.

As soon as the weather cools, I am gonna be doing the same thing.

 

I originally used a mechanical gauge/sender and had to use extra pieces to space it out from hitting the T-stat. Recently I changed it to an electrical gauge/sender and the extra pieces were not needed because the electric probe was MUCH shorter. Using the supplied 1/2" reducer it fit perfectly. Here's a pic...

 

It just bottoms out in the head, it doesn't hit the t-stat. Don't wanna scare some people. Your local NAPA can fix you up with the correct male to double female to male or whatever it is fittings for cheap too.

 

Yes I have one installed above the t stat

 

Bill, That must be why I have installed 2 different probes and they both keep leaking, it must not be seated, and I keep thinking its just a "cheap guage" so I toss it out. Ill space it out and see what I have. Actually Ill have to use a T since my inlet for the coolant filter also uses the same port.