If you can get to the shaft and remove the actuator lever (one screw) you can put an o ring over the shaft to stop the noise. I believe you can do it from the driver side floor, see the shaft and the actuator. Felt works good behind the o ring also. Some good old fashioned rigging from the mechanic days. Hope this helps.
Slim
1995 Chevy 2500,4x4, 5 spd, 6.2 .040 over, 18:1 ceramic coated pistons, Ported 6.5 turbo heads,6.5 high pop injectors, Gm-8 turbo ported turbine housing, custom intercooler, gm dual thermo, 130 gph water pump, 3 to 3.5 turbo down pipe to 4 inch exhaust. Custom electronic adjustable waste gate (got the idea from the Honda guys, Thanks), custom frame mount FSD cooler.