thanks.

can you tell me more on the xfer viscous coupling?

I have a 5 speed with a 241? part time xfer from a 94 IIRC, I was told that would bolt to the auto4speed to give part time 4x4..with locking hub I assume?

I just replaced PS pump, both front cv axles, both wheel bearings, both rotors/caliper/pads up front.

replaced both the tensioner pulley along with the idler pulley.

141,000 highway miles and looks like nothing has been replaced.

I want to get a front shaft and try it out, that's the only way I know to do it. from the looks/feel of the front axle CVs the case may be ok. almost all the noise went away up front.

but I do know how it can sound ok without a shaft on full time 4x4 but add a shaft and the front then howls.

oil looks good and the SG in the rear is nice and tight, I hear it scuff the rear tires left and right on tight turns with out the front shaft.

whats the common gear and tire size on the v8 GCs?