Gear change selector question

[John Mackie]

Hi all, I have come across several different gearbox tops. Appart from the latch type and the spring loaded one I have seen them with the bosses on the right hand or left hand sides. My Ford Canadia parts book lists BBC 7222 41-45 and C41T 7222 45-47 my Aust carrier parts book lists it as BB 7222 I am shure there must be others. I doubt it will be possible to reverse the housing.
John.

[SDeMocko]

Carrier folks,

I’m not sure anyone had a concern about this other than me but, I did find that a carrier specific gear change hat would bolt up ok to a non carrier trans housing. I know that wasn’t what I had originally been asking about when I started the thread, but it is still good to know info. I know this pic shows a lot of non original stuff going on in my engine bay like the 8BA engine to the wrong color trans and on and on….. Thanks for the loan of the top hat Mike.
I did have one question. Does anyone know what the thread pitch is on the top of the gear select shaft? I have measured it to be 18 tpi but that is a bunch odd so I was looking for conformation. I made up a nice nut ½”BSF but the shaft is not 16pitch. Thanks for the help

PS. I know the nut is listed in the book as 1/2" BSF but the nuts I made using that tap are off.

Stephen DeMocko
’44 MKII
So Cal, USA

[Lynn Eades]

The carriers are built using BSF threads, but the Ford built stuff is still UNF,UNC.
Your gearbox top is post war withe the sprung loaded internal reverse detent.
You can mahe up a plate to bolt on the lid (left side) to support the short end of the gimble. The australian carriers have just that. It bolts on with longer lid bolts, as their gearboxes never had the appropriate cast lugs on the left side.
I can check the gear lever thread, and height from the ball to where the bottom of the gimble sits , if you want.

[SDeMocko]

Lynn,
I didn’t have any problems with bolting the top on I just need to make a nut part number C01UC 103010. It says in the manual that it is 1/2" BSF but I am questioning the 16 TPI part. I think that it is a misprint and that the thread is actually different maybe 18 TPI.
Stephen

[rob love]

Use a pitch gauge, but if you don't have one just put a ruler against the threads and count how many are in an inch.

[Lynn Eades]

I have checked, and the thread on the bottom of the column is 12 tpi, which is BSW -( British coarse) which will be 1 thread different than UNC.

[SDeMocko]

BSC... Interesting. I had no Idea. Thanks guys.
Stephen

[The Bedford Boys]

Originally Posted by SDeMocko

BSC... Interesting. I had no Idea. Thanks guys.
Stephen

BSC is British Standard Cycle thread, used in motorcycles. Most of these are 26 TPI, with a few exceptions.