Rear Differential
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The hard shifting began this spring. There is not a shift kit installed on the truck. More specifically the symptoms are as follows: When I drive it for the first time each day or after its sat for awhile It shifts great. (for approx. the first 15 mins. or so) after that it starts shifting like crap..seemingly after it warms up. Occasionally at higher speeds if I have the cruise set at 55 it will slip and the rpms will shoot up. Side note this slippage has only ever occured right around 55. Has not/yet to happen at any other speed than that?
Originally Posted by FS88Bronco
cpresscot, A loud clunk when putting it in reverse, is most likely caused by excessive play in the driveshaft cardigan(?) u-joints. Also, the side gears in my 1988 rear end (150K) had excessive wear, before I replaced them. One can not judge "wear" solely by mileage on the odometer, driver habits, poor maintenance, off-road use, towing trailers, etc. could accelerate wear on any part in a vehicle.
As for the hard shifting issues; you didn't state when it all began. Is it possible that a previous owner had a shift kit installed in the tranny?
As for the hard shifting issues; you didn't state when it all began. Is it possible that a previous owner had a shift kit installed in the tranny?
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