speedo cable clicking - lube gear?

[xfactor]

My speedo cable was/is clicking and thumping at the transfer case, I think. Thought it was a bad cable, replaced it, still doing it. I ordered a new 16 tooth gear from Jeff's to correct the speedo reading. I guess my question is; Does the gear need lube? Is there a certain way it's installed? When I replaced the cable I put the old gear back in, it looked ok, it wasn't mangled or missing teeth and it's still clicking, sometime it's pretty loud kind of a thumping. I'm sure it's the gear or cable because the speedo clicks too and I can feel and hear it in the t-case shifter.

Any advise is appreciated.

Thanks,
Ray

 

[A&Mbronco]

I've got the same problem with mine, just figured it was b/c my gearing is different than stock with larger tires and 4.10's. You might want to make sure that the cable hasnt snapped though.

 

[dpmerrill]

Usually, the clicking means your cables going bad, but since you replaced it that probably rules that out. The cable will need lubrication, but I thought the reduction gear got everything it needed from the transfer case...

Does the cable make any tight turns? Does the speedo show a steady reading or does it jump around?

I would try disconnecting it from the back of the speedo for a few laps to see if the clicking goes away. It could be a worn speedo...

 

[xfactor]

Thanks for the input, the cable doesn't make any turns, it runs between the tranny crossmember and the body, then is in a clamp beside the emergency brake cable, then up the outside firewall into the hole. About cable lube...I've heard of graphite for the cable, but something elese is goofy. I suspected the speedo itself so I'm bidding on a rebuilt cluster on ebay. I'll disconnect the cable this morning and check it.

Thanks again,
Ray