Richard Miller

I gleefully went to connect my 1980 threaded speedometer cable and discovered this:



I do have this, which would work with my cable:


but the old pressed in unit is not budging. I tried a small propane torch to no avail. It seems all listed SA/FB cables are universal. I’m stating to lean towards drilling this out piece by piece. I’m sure there is a less savage non Camaro way of solving this.

7aull

iTrader: (2)

Well, W.T.F.
That is a weird aftermarket mod. And obv a PITA. The separate gear piece you show is correct, of course. Head-scratcher to swap them out, esp w/o damaging the TX housing. At least you have the gearbox out off the car to make it easier to correct. Wish I had an idea. Others will!

Stu A
80GS
AZ

Richard Miller

So this may not be a Mazda part?!?

7aull

iTrader: (2)

If you refer to the insert already in-place, all I can say is this is not a Mazda RX7 part...

Stu A
80GS
AZ

Richard Miller

what madness would cause someone to do this?

Toruki

Assuming you can't remove the weird one without damaging the case, and if the output shaft rotates as it should (does it?) then could you make an adapter?

If you're okay cutting up your Mazda part



Take the top part (shell?) and and attach it to the transmission case something like this...the blue is the existing weird part and the grey is the threaded bit form the proper part.

Richard Miller

Got it.

Flat pry bar was the key.

t_g_farrell

iTrader: (1)

So you removed the odd part? Any pics? New/old one went it ok?

mazdaverx713b

iTrader: (91)

Glad you were able to get it out! The speedometer gear fit in the trans ok still? Did you remember to lube the o-ring on the speedo gear?

Richard Miller

Everything works fine. I did not lube the Oring but I should just put a new one on anyways

mazdaverx713b

iTrader: (91)

If one is available, I think I would install a new one as well. A light coat of oil would be fine for the o-ring and would ensure it would not he difficult to remove in the future should you have to remove it.