The Ford Barn

47-57 · 08-18-2018, 03:27 PM

does anyone know the thread size on a power steering drag link end where the control valve screws on. tony

Oldmics · 08-18-2018, 08:39 PM

Thread size is 5/16 coarse.

The bolt used is slightly shorter than 1" (but a 1" should be fine) with a 1/2 head , 5/16 coarse thread with a flat star washer.

Oldmics

47-57 · 08-19-2018, 03:35 AM

drag link end has a fine thread 28? tony

KULTULZ · 08-19-2018, 08:21 AM

You are probably going to have to measure the size if you have a drag link. There is no size info in cataloging.

Oldmics · 08-19-2018, 09:05 AM

Lets be sure that I am understanding what you are asking.

The picture below shows the control valve assemble.

The bolt on the left side (loosened) that holds the control valve onto the drag link is the 1" 5/16 coarse bolt.
The other side (right side) is a 1/4 X 1 1/2 long coarse slotted head screw.

Are these the bolts you ask about ?

Or are you looking for the larger fine thread bolts that hold the idler arm bracket to the frame ?

Oldmics

KULTULZ · 08-19-2018, 10:22 AM

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I

think

the OP is describing the threaded endd of the drag link (3304) that the control valve is threaded onto.

47-57 · 08-19-2018, 01:01 PM

yes the fine threads on the drag link end 1-24 ?or 1-28? will mic and get a thread gage tomorrow

08-18-2018, 03:27 PM	#1
47-57 Junior Member Join Date: Feb 2016 Location: florida Posts: 7	1957 ford does anyone know the thread size on a power steering drag link end where the control valve screws on. tony

08-18-2018, 08:39 PM	#2
Oldmics BANNED Join Date: Jul 2010 Location: Balto.Md Posts: 382	Re: 1957 ford Thread size is 5/16 coarse. The bolt used is slightly shorter than 1" (but a 1" should be fine) with a 1/2 head , 5/16 coarse thread with a flat star washer. Oldmics

08-19-2018, 03:35 AM	#3
47-57 Junior Member Join Date: Feb 2016 Location: florida Posts: 7	Re: 1957 ford drag link end has a fine thread 28? tony

08-19-2018, 08:21 AM	#4
KULTULZ Senior Member Join Date: Aug 2012 Location: IN A 'GALAXIE' FAR FAR AWAY Posts: 6,479	Re: 1957 ford You are probably going to have to measure the size if you have a drag link. There is no size info in cataloging. __________________ *** - MULTI-VEHICLE SYNTHETIC TRANSMISSION FLUID - Multi-vehicle transmission fluids are becoming more and more popular in the marketplace. Oil marketers design these fluids for a wide range of automatic transmission types. While they are not licensed by any specific auto manufacturer ... ??? ... enough said ... DIAGNOSED CDO** - (OCD In Correct Alphabetical Order)

08-19-2018, 01:01 PM	#7
47-57 Junior Member Join Date: Feb 2016 Location: florida Posts: 7	Re: 1957 ford yes the fine threads on the drag link end 1-24 ?or 1-28? will mic and get a thread gage tomorrow