Mr Whizard here:
Regarding the sticking Speedo and Tach needles. I previously stated on my website that the sticking was caused by viscous lubricant in the motors - this was incorrect. With further evaluation we finally have a fix for the problem. It does not involve changing the individual gauge motors but rather applying a modification to the gauges. The modification does not alter the look of the clusters ie no visible items are added.
We have priced this repair what we feel is very reasonable as there is considerable work to apply the modification.
Pricing: Repair sluggish needles: $189; Repair backlighting, fuel gauge problems, partially lit needles and sluggish needle modification (complete rebuild): $289
For more info visit our website http://www.mrwhizard.com