[Jacques Reed]

Hi Harry,

This might help:

My Ford F-15A has a Waltham round gauge speedo with 5/8-18 UNEF male end so that end of the cable needs a 5/8-18 UNEF female nut.
If Ford and Chev transfer cases use the same speedo driven gear connection that end is 7/8-18 male threads. Almost certain the Ford and Chev single speed xfer cases are the same so hope that applies to the two speed cases. So the transfer case end of the cable needs to be a 7/8-18 female nut.

The transfer case inner cable end has a 0.203" diameter tang tip and the speedo end has a 0.104" square end about 1" long to go into the speedometer.

My inner cable is 85" long as per Hanno's info. Length isn't critical as long as the difference between the inner cable and outer casing is 24mm to 32 mm longer. I would go for 32mm longer and cut off a bit of the square end if required.

To do it again I would add about 4-6 inches to the overall length to make bigger radius bends in the cable.

Cheers,