Author Topic: Tap size for UCA  (Read 1059 times)

Offline Bossbill

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Tap size for UCA
« on: June 02, 2019, 08:03:36 PM »
The threaded portions of my [67] upper control arms need some help.

Can someone cross check me that the tap would be a 1.175"-16 ?

[edit -- zero out the digital caliper, dummy]
« Last Edit: June 05, 2019, 02:44:48 PM by Bossbill »
Bill
Concours  Actual Ford Build 3/2/67 GT350 01375
Driven      6/6/70 0T02G160xxx Boss 302
Modified   5/18/65 5F09A728xxx 347 Terminator-X 8-Stack
Race        65 2+2 Coupe conversion

Offline 69bossnut

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Re: Tap size for UCA
« Reply #1 on: June 13, 2019, 07:07:06 PM »
Not sure of the size. But originally the shaft end caps would cut their own threads. You just need to swege the hole to make a little smaller so it will recut the threads.
DAVID DAVIS
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Offline Bossbill

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Re: Tap size for UCA
« Reply #2 on: June 13, 2019, 07:44:42 PM »
Yeah, you're right.
The cap is really, really hard. A file or re-threader won't touch it. And I think someone just made up a thread size because you cannot find a tap anywhere close.
The UCA is just mild steel and the cap should just cut right into it.

I think I'll give that a try.
Thanks for the suggestion!
Bill
Concours  Actual Ford Build 3/2/67 GT350 01375
Driven      6/6/70 0T02G160xxx Boss 302
Modified   5/18/65 5F09A728xxx 347 Terminator-X 8-Stack
Race        65 2+2 Coupe conversion