Took the RV out for its inspection and for an exercise after sitting for about 50 days.
Really noticed a good thump when taking off from a stop and reaching the first automatic trans shift (10 mph). The next shift (20-25mph) seemed tolerable, and even smoother shift at 40mph. At each stop and takeoff shift at 10 mph, the hard bump shift remained the same even after warming up.
Its the '05 6.0 chevy with 27000 miles. Any ideas as to tests to conduct to determine what it is likely to be? )Trans or maybe Universal joint)? Is it a big concern? We don't think it has been this noticeable before.
Thanks for any advice.