I have a '98 Ram QC 1500, 92k miles, 2wd, Auto, 5.9 V-8 w/ 3.55 sure grip axle.
The differential has developed a high pitched whine that increases in pitch with speed, simultaneously the ABS and Brake lights have illuminted and the speedo does not register any speeds below 20 mph.
I am pretty certain the ABS/Speedo sending unit in the axle housing is bad....Any ideas what might have died in the differential any why? There is a fine metallic sludge in the bottom of the housing and some small metal chips/shavings/etc.
I plan to replace the ring and pinion with a set of Richmond 3.55's and ther complete overhaul bearing and shim kit.
I have the tool to adjust the carrier bearing preload on the way and have been able to get dial indicators torque wrenches and pinion depth tools from friends.
Anybody had there differential buy the farm? What was the cause? I was pulling an 1800# trailer when the whining started....Any suggestions or tips?
thanks- rich