Speedometer Drive

[SLPreston53]

Looking for an answer I can't find anywhere else so far. The old speedo drive gear was very worn, so I replaced it with the correct new piece. Is it "normal" for the speedo drive housing to be shimmed with gaskets to have correct pressure on the gear on the driveshaft?

 

[CarlG]

Snyder's catalog says that is correct, and the reason they package them 3 to a package. (A-17275 $.50 for a pack of 3) I haven't been able to determine just how you figure out how many gaskets to put in, however.

 

[kartek]

I just did this myself last week. I used 4 gaskets to get to the "sweet spot"... I kinda had to go by feel more than anything. I'm sure that there is a more technical and correct procedure, but it worked for me. Should I ever remove the trans, I will definitely re-do it on the bench to get it perfect.

 

[columbiA]

Normaly you only need one gasket.When installed,I stick a pencil in the drive end & wiggle it back & forth to check for a slight back-lash in the gears.For a driven gear thats worn a bit,Ive installed the hsg with just a bit of silicone & no gasket to get a better mesh.