Iron torqueflite speedo.

moopar · Post by **moopar** » Mon May 19, 08 11:31 am

Help! Looking for some guidance on an iron torqueflite on which I'm trying to get the speedo working. From outside the box it would appear that the speedo drive gear is just floating back and forth internally. Obviously something in there must be missing but I am not sure what.
There are two versions of this drive set up....one takes a clamp on speedo cable and one has a screw on cable. Mine is the screw on type.
Has anybody please got a diagram showing what should be in the drive housing so that I can then put out a wanted ad for the missing parts?
Thank you.....

Dave-R · Post by **Dave-R** » Mon May 19, 08 11:38 am

Not sure about the old iron versions but on the newer ones the output shaft has a worm drive on it that the speedo gear teeth engage in. You turn the speedo gear housing to engage it as it has to accommodate different diameter drive gears.

Blue · Post by **Blue** » Mon May 19, 08 12:15 pm

Sorry, I know nothing about iron Torqueflites, I've never even seen one.

Cannonball · Post by **Cannonball** » Mon May 19, 08 12:23 pm

strippin one today will let you know, have built severall but cannot remember whats in that bit, has it got the drum brake on the back

moopar · Post by **moopar** » Mon May 19, 08 10:39 pm

Yes it's got the drum brake. It's a 58 box. The speedo drive is different to a later torqueflite.
There are 2 versions. The one with a clamp on speedo cable has a drive gear clipped to the cable end. Mine is the screw on type and is different internally.
I'm guessing that there is a drive gear run from the output shaft worm and then maybe a short shaft of some sort. Don't want to unscrew the drive housing until I've got an idea of what should be in there!
Thanks....

Cannonball · Post by **Cannonball** » Wed May 21, 08 11:09 pm

moopar wrote:Yes it's got the drum brake. It's a 58 box. The speedo drive is different to a later torqueflite.
There are 2 versions. The one with a clamp on speedo cable has a drive gear clipped to the cable end. Mine is the screw on type and is different internally.
I'm guessing that there is a drive gear run from the output shaft worm and then maybe a short shaft of some sort. Don't want to unscrew the drive housing until I've got an idea of what should be in there!
Thanks....

stripped this box today, its the long iron version, screw on cable, the housing itself screws in to the ext housing with a small nylon gear through it, it is driven off the out put shaft , the shaft has the drive gear cut in to the shaft itself as all tflites so nothing can move around, hope this helps,

moopar · Post by **moopar** » Thu May 22, 08 9:35 am

Thanks Duncan. What is happening is that the drive gear seems to float in and out so that it doesn't engage the speedo cable. I wondered if there was a drive gear and then a short shaft and that the shaft may be missing. From what you say it seems there is just a plastic drive gear and the cable attaches to that? if that is the case then my drive gear must have a missing piece on it. Guess we need to remove the big nut and remove it for a look see.
Thanks for taking the trouble to let me know...much appreciated.

Cannonball · Post by **Cannonball** » Thu May 22, 08 10:00 pm

moopar wrote:Thanks Duncan. What is happening is that the drive gear seems to float in and out so that it doesn't engage the speedo cable. I wondered if there was a drive gear and then a short shaft and that the shaft may be missing. From what you say it seems there is just a plastic drive gear and the cable attaches to that? if that is the case then my drive gear must have a missing piece on it. Guess we need to remove the big nut and remove it for a look see.
Thanks for taking the trouble to let me know...much appreciated.

no prob
if you get yours out and are unsure post a pic, i will compare for you,
would post a pic off this but no camera,

moopar · Post by **moopar** » Wed Jan 21, 09 7:41 am

Sorry to bring this question back up but I kept using the car through last year and we only took this apart yesterday for a look.
What I have as Duncan said earlier is a screw in housing(1'' hex with a tapered length heading inwards) with the plastic drive gear sitting in it. My problem is that the drive gear is able to float in and out and so Bananarama! from the steel output shaft gear.
Looking closely it would appear that there should be something which pushes over the output end of the plastic drive gear, which would sit in the centre of the 1'' hex end of the housing and prevent the gear from floating in and out. There is a witness mark as if something once pushed on there but it is long gone.
My guess is that it would need to be some sort of small push on sleeve.
Has anybody any ideas or know if any later box uses something similair?
Thank you....

moopar · Post by **moopar** » Wed Jan 21, 09 7:20 pm

Photos may help:

The witness mark where something once sat can be clearly seen in pic 2.